Léonard Tremblay

{{Short description|Canadian politician (1896–1968)}}

{{Use Canadian English|date=September 2021}}

{{Use dmy dates|date=September 2021}}

{{Infobox officeholder

| honorific-prefix = The Hon.

| name=Léonard Tremblay

| birthname=Léonard-David Sweezey Tremblay

| image=

| imagesize=150px

| caption=

| birth_date={{birth date|df=yes|1896|4|16}}

| birth_place=Chicoutimi, Quebec, Canada

| death_date={{death date and age|1968|9|19|1896|4|16|df=yes}}

| death_place=

| spouse=Beatrice Cote
m. 17 May 1920{{cite book | title=The Canadian Parliamentary Guide | year=1952 | first=Pierre G. | last=Normandin }}

| residence=

| constituency_MP=Dorchester

| parliament=Canadian

| predecessor=Onésime Gagnon

| successor=Robert Perron

| term_start=October 14, 1935

| term_end=June 11, 1953

| office2 = Senator for Lauzon, Quebec

| appointed2 = Louis St. Laurent

| predecessor2 = Eugène Paquet

| successor2 = Jean-Paul Deschatelets

| term_start2 = June 12, 1953

| term_end2 = September 2, 1965

| profession=journalist, public servant

| party=Liberal

| footnotes=

| religion=

| website=

|}}

Léonard-David Sweezey Tremblay (16 April 1896 – 19 September 1968) was a Liberal party member of the House of Commons of Canada. He was born in Chicoutimi, Quebec and became a journalist and public servant by career.

Tremblay was educated at Lauzon College and served in both World War I and World War II. He was first elected to Parliament at the Dorchester riding in the 1935 general election then re-elected there in 1940, 1945 and 1949. The margin of victory of the 1949 election was particularly small, as Progressive Conservative candidate Gérard Corriveau trailed by 221 votes.{{cite news | title=Quebec Prospect: PC's See Victory in Dorchester | newspaper=The Globe and Mail | date=6 August 1953 | page=13 | first=George | last=Bain }}

At the end of the 21st Canadian Parliament in June 1953, Tremblay was appointed to the Senate under the Lauzon division and remained in the Senate until September 1965.