This is a list of numbered provincial highways in the Canadian province of New Brunswick. These provincial highways are maintained by the Department of Transportation and Infrastructure in New Brunswick. For a list of formerly-numbered highways, see List of former New Brunswick provincial highways.
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Arterial highways
Marked by green signs, these highways are the primary routes in the system, and Routes 1, 2, 7, 8, 11, 15, 16 and 95 are all expressways or freeways for part or all of their length. The speed limit generally ranges from , with the highest limits on four-lane freeway sections.
{| class="wikitable" style="margin:auto;"
!scope=col width=115| Route
!scope=col | Length<br/>(km)
!scope=col | Length<br/>(mi)
!scope=col |Southern / western terminus
!scope=col |Northern / eastern terminus
!scope=col width="5%"|References
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|International Avenue to US 1 in Calais
| in River Glade
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| near Edmundston
| near Fort Lawrence
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| in St. Stephen
| in Longs Creek
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| at the Vanceboro–St. Croix Border Crossing
| in Thomaston Corner
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| in Fredericton
| near Saint John
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|-
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| near Fredericton
| near Bathurst
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|-
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| in Fredericton
| in Sussex
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|-
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| near Shediac
| near Matapédia
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|-
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| in Riverview
| near Strait Shores
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| in Aulac
| on the Confederation Bridge
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| in Saint-Léonard
| in Glencoe
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| at the Houlton–Woodstock Border Crossing
| in Woodstock
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|}
Collector highways
Marked by blue signs, these secondary highways are sometimes the old alignments of primary highways or connector routes between towns or to and from primary highways. The speed limit is generally .
- 22px Route 100 -- Saint John - Rothesay - Quispamsis - Hampton
- 22px Route 101 -- Fredericton - Tracy - Fredericton Junction - Welsford
- 22px Route 102 -- Pokiok - Kingsclear - Fredericton - Oromocto - Arcadia - Westfield
- 22px Route 103 -- Woodstock - Florenceville
- 22px Route 104 -- Hartland - Nackawic-Millville - Keswick Ridge
- 22px Route 105 -- Grand Falls - Perth-Andover - Bristol - Florenceville - Hartland - Grafton - Nackawic-Millville - Mactaquac - Fredericton - Jemseg - Youngs Cove
- 22px Route 106 -- Three Rivers - Salisbury - Moncton - Dieppe - Memramcook - Dorchester - Sackville
- 22px Route 107 -- Bristol - Juniper - Nashwaak - Nashwaak Bridge
- 22px Route 108 -- Grand Falls - Tobique Valley - Renous-Quarryville - Miramichi
- 22px Route 109 -- Perth-Andover - Tobique Valley
- 22px Route 110 -- Florenceville - Centreville - U.S. border at Bridgewater, Maine
- 22px Route 111 -- Rothesay - Saint John Airport - Fundy-St. Martins - Sussex Corner
- 22px Route 112 -- Coles Island - Canaan Forks - Salisbury - Riverview
- 22px Route 113 -- Pokemouche - Shippagan - Lamèque - Miscou Island
- 22px Route 114 -- Sussex - Fundy National Park - Riverside-Albert - Hillsborough - Riverview - Moncton
- 22px Route 115 -- Moncton - Champdoré - Bouctouche
- 22px Route 116 -- Upper Salmon Creek - Harcourt - Elsipogtog First Nation - Five Rivers
- 22px Route 117 -- Kouchibouguac National Park - Baie-Sainte-Anne - Miramichi
- 22px Route 118 -- Miramichi River Valley - Miramichi
- 20px Route 119 -- Quispamsis - Gondola Point
- -- Edmundston - Baker Brook - Lac-Baker - Quebec border at Saint-Jean-de-la-Lande
- 22px Route 121 -- Hampton - Valley Waters - Sussex - Sussex Corner
- 22px Route 122 -- Lakeland Ridges - Fosterville - U.S. border at Orient, Maine
- 22px Route 123 -- Chipman - Doaktown
- 22px Route 124 -- Evandale - Springfield - Valley Waters
- 22px Route 126 -- Moncton - Harcourt - Nouvelle-Arcadie - Miramichi
- 22px Route 127 -- Lawrence Station - St. Andrews - Digdeguash
- 22px Route 128 -- Moncton - Berry Mills
- 22px Route 130 -- Grand Falls - Grand Falls Portage - Aroostook - Perth-Andover - Florenceville-Bristol - Hartland - Waterville
- 22px Route 132 -- Dieppe - Scoudouc - Shediac
- 22px Route 133 -- Shediac - Cap-Pele
- 22px Route 134 -- Moncton - Shediac - Bouctouche - Five Rivers - Richibucto - St-Louis-de-Kent / Allardville - Bathurst - Beresford - Belledune - Charlo - Dalhousie - Campbellton
- 22px Route 135 -- Pokeshaw - Hautes-Terres
- 22px Route 140 -- Shediac (Ohio Road)
- 22px Route 144 -- Edmundston - Saint-Léonard - Grand Falls
- 22px Route 145 -- Caraquet - Bas-Caraquet
- 22px Route 148 -- Fredericton - Nashwaak Village
- 22px Route 150 -- Tracadie-Sheila - Losier Settlement - Six Roads
- 22px Route 160 -- Allardville - Hautes-Terres - Losier Settlement
- 22px Route 161 -- Caron Brook - Clair
- 22px Route 165 -- Woodstock - Lakeland Ridges
- 22px Route 170 -- St. Stephen - Waweig
- 22px Route 172 -- St. George - L'Etete
- 22px Route 175 -- Pennfield - Lepreau
- 22px Route 176 -- Pennfield - Blacks Harbour
- 22px Route 177 -- Grand Bay - Westfield
- 22px Route 180 -- Saint-Quentin - Bathurst
- 22px Route 190 -- Perth-Andover - U.S. border at Fort Fairfield, Maine
Local highways
Marked by black signs, these are the tertiary routes that fill out the highway network and connect small communities and areas to more important highways. The speed limit is generally or lower depending on road design standards.
- 22px Route 205 -- Clair - Saint-François-de-Madawaska - Connors
- 22px Route 215 -- Saint-François-de-Madawaska - Lac Unique - 17px Route 289 (Quebec)
- 22px Route 218 -- Grand Falls - U.S. border crossing at Hamlin, Maine
- 22px Route 255 -- Saint-André - Route 17
- 22px Route 260 -- Rang-Douze-Sud - Rang-Quatorze - Limerick - Saint-Martin-de-Restigouche - Thibault - Kedgwick
- 22px Route 265 -- Kedgwick River - Six-Milles - Quatre-Milles - Rang-Double-Nord
- 22px Route 275 -- Glencoe - Val-Melanson - Saint-Arthur - McKendrick - Maltais - Blair Athol - Upper Balmoral - Balmoral - Selwood - Eel River Crossing - Darlington
- 22px Route 280 -- McLeods - Upper Dundee - Shannonvale - Dundee - Eel River Cove - Charlo
- 22px Route 303 -- Dugas - Village-des-Poirier - Maisonnette
- 22px Route 305 -- Lamèque - Ste-Marie-St-Raphaël - Pigeon Hill
- 22px Route 310 -- Lamèque Island (Coteau Road)
- 22px Route 313 -- Lamèque - Petite-Lamèque - Petite-Rivière-de-l'Ile - Petit-Shippagan
- 22px Route 315 -- Bathurst - Dunlop - Nigadoo - LaPlante - Petit-Rocher
- 22px Route 320 -- Grande-Anse - Anse-Bleue - Maisonnette
- 22px Route 322 -- Bathurst - Robertville - Saint-Laurent - Nigadoo
- 22px Route 325 -- Caraquet - Bertrand - Trudel
- 22px Route 330 -- Black Rock - Saint-Léolin - Grande-Anse
- 22px Route 335 -- Caraquet - Saint-Simon - Evangeline
- 22px Route 340 -- Janeville - Notre-Dame-des-Erables - Hautes-Terres
- 22px Route 345 -- Pokemouche - Evangeline - Inkerman Ferry
- 22px Route 350 -- Hautes-Terres - Maltampec - Pokemouche
- 22px Route 355 -- Bois-Blanc - Sainte-Rose - Six Roads
- 22px Route 360 -- Allardville - Middle Landing - Brunswick Mines
- 22px Route 363 -- Saint-Sauveur - Butte D'Or - Spruce Brook - Hacheyville
- 22px Route 365 -- Saint-Isidore - Tracadie
- 22px Route 370 -- Riviere-du-Portage - Pont-Lafrance - Sheila
- 22px Route 375 -- Lower Portage - US border
- 22px Route 380 -- Lake Edward - Bell Grove - Three Brooks
- 22px Route 385 -- Weaver - Mapleview - Burntland Brook - Oxbow - Everett - Two Brooks - Blue Mountain Bend - Riley Brook - Nictau - Mount Carleton Provincial Park - Route 180 (Saint-Quentin to Bathurst)
- 22px Route 390 -- Tobique Valley - Wapske - Odell - Arthurette - Rowena - Tobique Narrows
- 22px Route 395 -- Hazedean - Anfield - McLaughlin - Route 109
- 22px Route 415 -- Renous-Quarryville - Warwick Settlement - Red Bank
- 22px Route 420 -- Derby Junction - Red Bank - Sillikers - Interchange with Route 108 (Renous-Quarryville)
- 22px Route 425 -- Red Bank - Sunny Corner - Whitney - Strathadam - Eel Ground - Miramichi
- 22px Route 430 -- Miramichi -- Heath Steele—Bathurst Mines -- Bathurst
- 22px Route 435 -- Whitney -- Maple Glen
- 22px Route 440 -- Nouvelle-Arcadie - Shediac Ridge - Rosaireville - St. Margaret's
- 22px Route 445 -- Lagacéville - Fairisle - Covedell
- 22px Route 450 -- Village-Saint-Laurent - Lagacéville - Lavillette - Route 8
- 22px Route 455 -- Neguac - Fairisle - Lavillette
- 22px Route 460 -- Neguac - Price Settlement - Gaythorne - Tabusintac
- 22px Route 465 -- Coal Branch - Ford's Mills - Smith's Corner
- 22px Route 470 -- Ford's Mills - Pine Ridge - Mundleville
- 22px Route 475 -- Bouctouche - Baie de Bouctouche - Saint-Édouard-de-Kent - Sainte-Anne-de-Kent
- 22px Route 480 -- Kouchibouguac - Acadieville - Acadie Siding
- 22px Route 485 -- Canaan - Route 490
- 22px Route 490 -- Moncton - Irishtown - McLean Settlement - Pine Ridge - Browns Yard - Bass River
- 22px Route 495 -- Five Rivers - Mundleville - Murphy Settlement - Sainte-Marie-de-Kent
- 22px Route 505 -- Sainte-Anne-de-Kent - Richibucto-Village - Five Rivers
- 22px Route 510 -- Mundleville - Browns Yard - Fords Mills
- 22px Route 515 -- Hebert - McLean Settlement - Sainte-Marie-de-Kent - Bouctouche
- 22px Route 525 -- Sainte-Marie-de-Kent - Champdoré
- 22px Route 530 -- Grande-Digue - Caissie Cape - Cocagne
- 22px Route 535 -- Notre-Dame - Cocagne - Saint-Francois-de-Kent
- 22px Route 540 -- Graham Corner - Debec - Richmond Corner - Belleville
- 22px Route 550 -- Woodstock - Bloomfield - Tracey Mills (Route 110)
- 22px Route 555 -- Woodstock - Richmond Corner - Route 95
- 22px Route 560 -- Woodstock - Lakeville - Centreville - River de Chute (Route 130)
- 22px Route 565 -- Upper Kent- Holmesville - Giberson Settlement - Bath
- 22px Route 570 -- Gordonsville - Coldstream
- 22px Route 575 -- Hartland - Pole Hill - Cloverdale
- 22px Route 580 -- Glassville - Lower Windsor
- 22px Route 585 -- Woodstock - Grafton - Hawkins Corner
- 22px Route 590 -- Jacksonville - Waterville
- 22px Route 595 -- Bull Lake - Temperance Vale
- 22px Route 605 -- Nackawic-Millville
- 22px Route 610 -- Upper Queensbury - Upper Caverhill - Upper Hainesville
- 22px Route 615 -- Mactaquac - Springfield -- Upper Caverhill
- 22px Route 616 -- Keswick Ridge - Zealand
- 22px Route 617 -- Burtts Corner - Birdton - Hamtown Corner
- 22px Route 620 -- Fredericton - Tay Creek - Nashwaak
- 22px Route 625 -- Boiestown - Parker Ridge - Cross Creek
- 22px Route 628 -- Fredericton - Penniac - Durham Bridge - Taymouth
- 22px Route 630 -- Lakeland Ridges - Andersonville
- 22px Route 635 -- Lower Prince William - Lake George - Magaguadavic - York Mills
- 22px Route 636 -- Lake George - Harvey Station
- 22px Route 640 -- Fredericton - Hanwell - Acton
- 22px Route 645 -- Hurley Corner - Rooth - Tracy
- 22px Route 655 -- Nasonworth - Rusagonis-Waasis - Lincoln
- 22px Route 670 -- Lakeville Corner - Ripples - Albrights Corner
- 22px Route 690 -- Sheffield - Lakeville Corner - Douglas Harbour - Newcastle Creek - Minto
- 22px Route 695 -- Springfield - Arcadia - Jemseg
- 22px Route 705 -- Kars - Wickham - MacDonald Point - Belyeas Cove - Henderson Settlement
- 22px Route 710 -- Hatfield Point - Henderson Settlement - Big Cove - Arcadia - Codys - Chambers Corner
- 22px Route 715 -- Jemseg - Lower Cambridge - Arcadia - Coles Island
- 22px Route 725 -- St. Stephen - Little Ridge - St. Croix River
- 22px Route 730 -- Upper Little Ridge - Scotch Ridge - Basswood Ridge - DeWolfe
- 22px Route 735 -- St. Stephen - Scotch Ridge - St. Croix River
- 22px Route 740 -- St. Stephen - Basswood Ridge
- 22px Route 745 -- Moores Mills - Oak Hill - Canoose - St. Croix River
- 22px Route 750 -- Honeydale - Moores Mills - Maxwell Crossing - St. Stephen
- 22px Route 755 -- Andersonville - Honeydale - Oak Bay
- 22px Route 760 -- Simpson Corner - Waweig - Elmsville - Bethel (Route 1)
- 22px Route 770 -- Route 127 - Rollingdam - Clarence Ridge - Bonny River - St. George
- 22px Route 772 -- Deer Island
- 22px Route 774 -- Campobello Island
- 22px Route 776 -- Grand Manan Island
- 22px Route 778 -- Pennfield - Beaver Harbour - Blacks Harbour
- 22px Route 780 -- St. George - Utopia - Lepreau
- 22px Route 785 -- Pennfield - Utopia - Mount Pleasant - Blissville
- 22px Route 790 -- Lepreau - Dipper Harbour - Chance Harbour - Musquash
- 22px Route 795 -- Lepreau - Wetmore Creek
- 22px Route 820 -- Loch Lomond - Upham - Upperton (Route 111)
- 22px Route 825 -- Loch Lomond - Garnett Settlement - Gardner Creek - Simonds
- 22px Route 845 -- Kingston - Hampton
- 22px Route 850 -- Kingston - Urquhart - Erbs Cove - Long Point - Keirsteadville - Springfield
- 22px Route 855 -- Midland - Bloomfield
- 22px Route 860 -- Saint John - Rothesay (Wells) - French Village - Titusville - Clover Hill
- 22px Route 865 -- Valley Waters - Clover Hill - Hillsdale
- 22px Route 870 -- Springfield - Belleisle Creek - Kierstead Mountain
- 22px Route 875 -- Belleisle Creek - Searsville - Lower Millstream
- 22px Route 880 -- Apohaqui - Berwick - Havelock
- 22px Route 885 -- Three Rivers - Havelock - New Canaan
- 22px Route 890 -- Sussex - Cornhill - Three Rivers
- 22px Route 895 -- Anagance - Portage Vale - Goshen - Elgin - Little River - Coverdale
- 22px Route 905 -- Three Rivers - Elgin
- 22px Route 910 -- Coverdale - Caledonia Mountain - Hillsborough
- 22px Route 915 -- Riverside-Albert - Cape Enrage - Alma
- 22px Route 925 -- Dieppe - Dover - Memramcook
- 22px Route 933 -- Memramcook - Haute-Aboujagane - Barachois
- 22px Route 935 -- Dorchester - Johnson's Mills - Sackville
- 22px Route 940 -- Sackville - Shemogue
- 22px Route 945 -- Haute-Aboujagane - Beaubassin-Est - Cap-Pelé
- 22px Route 950 -- Cap-Pelé - Petit-Cap - Shemogue
- 22px Route 955 -- Mates Corner - Chapmans Corner - Cadman Corner - Murray Corner - Spence Settlement - Bayfield - Cape Tormentine
- 22px Route 960 -- Strait Shores - Upper Cape - Cape Spear - Cape Tormentine
- 22px Route 970 -- Strait Shores - Baie Verte - (Nova Scotia)
Other highways
The following roads are designated provincial highways by the New Brunswick Department of Transportation, but have no signed numerical designation:
- Deer Island Point Road - Route from Deer Island (New Brunswick) that connects Route 772 to Route 774 on Campobello Island via Cummings Cove to Welshpool Ferry and also from Deer Island (New Brunswick) New Brunswick Route 772 to Maine State Route 190 in Eastport, Maine via Cummings Cove to Eastport Ferry.
- Gunningsville Bridge and approaches, Moncton to Riverview (2.2 km)
- Palmer Brook Connector (1.6 km): Connector from Route 100 to Route 1 east of Quispamsis, and former alignment of Route 1.
- Prospect Street Extension, Fredericton (2.7 km): A former alignment of Route 2 from Hanwell Road (Route 640) to Woodstock Road (Route 102).
- Rue Principale, Tracadie-Sheila (7.4 km): A former alignment of Route 11.
- Vanier Boulevard, Bathurst (1.7 km): A continuation of Route 180 from Route 11 to St. Peter Boulevard (Route 134).
- Westmorland Street Bridge, Fredericton (1.6 km)
