thumb|right|alt=|The location of [[Lincolnshire in relation to England.]]
The non-metropolitan county of Lincolnshire is divided into 8 parliamentary constituencies: 1 borough constituency and 7 county constituencies.
Constituencies
{| class="wikitable sortable"
|-
! rowspan="1" |Constituency
! rowspan="1" |Electorate
! rowspan="1" |Majority
! class="unsortable" colspan="2" |Member of Parliament
! class="unsortable" colspan="2" |Nearest opposition -->
! class="unsortable" rowspan="1" |Map
|-
|Boston and Skegness CC
|75,811
|2,010
| style="color:inherit;background:" |
|Richard Tice¤
| style="color:inherit;background:" |
|Matt Warman†
|alt=Locator map of Boston and Skegness constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Gainsborough CC
|75,836
|3,532
| style="color:inherit;background:" |
|Sir Edward Leigh†
| style="color:inherit;background:" |
|Jess McGuire‡
|alt=Locator map of Gainsborough constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Grantham and Bourne CC
|73,285
|4,496
| style="color:inherit;background:" |
|Gareth Davies†
| style="color:inherit;background:" |
|Vipul Bechar‡
|alt=Locator map of Grantham and Bourne constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Lincoln BC
|72,315
|8,793
| style="color:inherit;background:" |
|Hamish Falconer‡
| style="color:inherit;background:" |
|Karl McCartney†
|alt=Locator map of Lincoln constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Louth and Horncastle CC
|76,880
|5,506
| style="color:inherit;background:" |
|Victoria Atkins†
| style="color:inherit;background:" |
|Sean Matthews¤
|alt=Locator map of Louth and Horncastle constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Rutland and Stamford CC (part)
|71,763
|10,394
| style="color:inherit;background:" |
|Alicia Kearns†
| style="color:inherit;background:" |
| Joe Wood‡
|alt=Locator map of Rutland and Stamford constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|Sleaford and North Hykeham CC
|75,651
|4,346
| style="color:inherit;background:" |
|Dr Caroline Johnson†
| style="color:inherit;background:" |
| Hanif Khan‡
|alt=Locator map of Sleaford and North Hykeham constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|South Holland and The Deepings CC
|78,473
|6,856
| style="color:inherit;background:" |
|John Hayes†
| style="color:inherit;background:" |
|Matthew Swainson¤
|alt=Locator map of South Holland and the Deepings constituency in Lincolnshire from 2024|left|frameless|130x130px
|-
|}
Boundary changes
2024
For the 2023 review of Westminster constituencies, which redrew the constituency map ahead of the 2024 United Kingdom general election, the Boundary Commission for England opted to combine Lincolnshire with Leicestershire and Rutland in a sub-region of the East Midlands region, creating one additional seat by re-establishing the constituency of Rutland and Stamford, spanning all three counties. Consequently, Stamford was removed from the constituency of Grantham and Stamford, which was renamed Grantham and Bourne.
{| class="wikitable"
!style="background-color:#ff9999"|Former name!! style="background-color:#ff9999" |Boundaries 2010–2024
!! style="background-color:#ff9999"|Current name!! style="background-color:#ff9999" |Boundaries 2024–present
|-
|
- Boston and Skegness CC
- Gainsborough CC
- Grantham and Stamford CC
- Lincoln BC
- Louth and Horncastle CC
- Sleaford and North Hykeham CC
- South Holland and The Deepings CC
|left|Proposed Revision
|
- Boston and Skegness CC
- Gainsborough CC
- Grantham and Bourne CC
- Lincoln BC
- Louth and Horncastle CC
- Rutland and Stamford CC
- Sleaford and North Hykeham CC
- South Holland and The Deepings CC
|alt=Numbered map of parliamentary constituencies in Lincolnshire from 2024|left|273x273px|Boundaries 2024–present
|}
The following seats were proposed:
Containing electoral wards from Boston
- Boston and Skegness (part)
Containing electoral wards from East Lindsey
- Boston and Skegness (part)
- Louth and Horncastle
Containing electoral wards from Lincoln
- Lincoln (part)
Containing electoral wards from North Kesteven
- Grantham and Bourne (part)
- Lincoln (part)
- Sleaford and North Hykeham
Containing electoral wards from South Holland
- South Holland and The Deepings (part)
Containing electoral wards from South Kesteven
- Grantham and Bourne (part)
- Rutland and Stamford (also comprises the county of Rutland and parts of Harborough in Leicestershire)
- South Holland and The Deepings (part)
Containing electoral wards from West Lyndsey
- Gainsborough
2010
In the Fifth Review the Boundary Commission for England recommended that Lincolnshire retained its current constituencies, with minor changes only to reflect revisions to local authority ward boundaries and to reduce the electoral disparity between constituencies.
{| class="wikitable"
!style="background-color:#ff9999"|Name!!style="background-color:#ff9999"|Boundaries 1997–2010!!style="background-color:#ff9999"|Boundaries 2010–2024
|-
|
- Boston and Skegness CC
- Gainsborough CC
- Grantham and Stamford CC
- Lincoln BC
- Louth and Horncastle CC
- Sleaford and North Hykeham CC
- South Holland and The Deepings CC
|left|Parliamentary constituencies in Lincolnshire
|left|Proposed Revision
|-
|}
Results history
Primary data source: House of Commons research briefing – General election results from 1918 to 2019
2024
The number of votes cast for each political party who fielded candidates in constituencies comprising Lincolnshire in the 2024 general election were as follows: