The 1973 New Brunswick electoral redistribution was the most radical redistribution of electoral districts in the history of New Brunswick, Canada. Under this redistribution, New Brunswick changed from a mixture of multi-member districts and single-member districts to a scheme of only single-member districts, from bloc voting electoral system to first past the post.
As the number of members per district had been re-evaluated as recently as 1967, the number of members was not changed, and multi-member districts were simply subdivided to form single-member districts.
Prior to the redistribution, New Brunswick had had the longest and deepest experience of multi-member districts of any province in Canada. The Block voting system in use though denied voters the proportional representation that they might otherwise have enjoyed.
Transition of districts
{| class="wikitable"
|-
!Former electoral district
!New electoral districts
|-
|Albert
|Albert; Riverview
|-
|Bathurst
|unchanged
|-
|Campbellton
|unchanged
|-
|Carleton
|Carleton Centre; Carleton North; Carleton South
|-
|Charlotte
|Charlotte Centre; Charlotte-Fundy; Charlotte West; St. Stephen-Milltown
|-
|Edmundston
|unchanged
|-
|Fredericton
|Fredericton North; Fredericton South
|-
|Gloucester
|Caraquet; Nepisiguit-Chaleur; Nigadoo-Chaleur; Shippagan-les-Îles; Tracadie
|-
|Kent
|Kent Centre; Kent North; Kent South
|-
|Kings
|Kings Centre; Kings East; Kings West
|-
|Madawaska
|Madawaska Centre; Madawaska-les-Lacs; Madawaska South
|-
|Moncton
|Moncton East; Moncton North; Moncton West
|-
|Northumberland
|Bay du Vin; Chatham; Miramichi Bay; Miramichi-Newcastle; Southwest Miramichi
|-
|Queens
|Queens North; Queens South
|-
|Restigouche
|Dalhousie; Restigouche East; Restigouche West
|-
|Saint John Centre
|Saint John Harbour; Saint John North; Saint John Park; Saint John South
|-
|Saint John East
|East Saint John; Saint John-Fundy
|-
|Saint John West
|unchanged
|-
|Sunbury
|Oromocto; Sunbury
|-
|Victoria
|Grand Falls; Victoria-Tobique
|-
|Westmorland
|Memramcook; Petitcodiac; Shediac; Tantramar
|-
|York
|York North; York South
|}
List of electoral districts
(each district returns one member)
- Albert
- Bathurst
- Bay du Vin
- Campbellton
- Caraquet
- Carleton Centre
- Carleton North
- Carleton South
- Charlotte Centre
- Charlotte-Fundy
- Charlotte West
- Chatham
- Dalhousie
- East Saint John
- Edmundston
- Fredericton North
- Fredericton South
- Grand Falls
- Kent Centre
- Kent North
- Kent South
- Kings Centre
- Kings East
- Kings West
- Madawaska Centre
- Madawaska-les-Lacs
- Madawaska South
- Memramcook
- Miramichi Bay
- Miramichi-Newcastle
- Moncton East
- Moncton North
- Moncton West
- Nepisiguit-Chaleur
- Nigadoo-Chaleur
- Oromocto
- Petitcodiac
- Queens North
- Queens South
- Restigouche East
- Restigouche West
- Riverview
- Saint John-Fundy
- Saint John Harbour
- Saint John North
- Saint John Park
- Saint John South
- Saint John West
- St. Stephen-Milltown
- Shediac
- Shippagan-les-Îles
- Southwest Miramichi
- Sunbury
- Tantramar
- Tracadie
- Victoria-Tobique
- York North
- York South