John Sparrow David Thompson

Sir John Thompson
Thompson in 1891
4th Prime Minister of Canada
In office
December 5, 1892 – December 12, 1894
MonarchVictoria
Governors GeneralThe Lord Stanley of Preston
The Earl of Aberdeen
Preceded byJohn Abbott
Succeeded byMackenzie Bowell
5th Premier of Nova Scotia
In office
May 25, 1882 – July 18, 1882
MonarchVictoria
Lieutenant GovernorAdams George Archibald
Preceded bySimon Hugh Holmes
Succeeded byWilliam Thomas Pipes
MLA for Antigonish County
In office
December 4, 1877 – July 27, 1882
Preceded byJohn J. McKinnon
Succeeded byCharles B. Whidden
Member of Parliament
for Antigonish
In office
October 16, 1885 – December 12, 1894
Preceded byAngus McIsaac
Succeeded byColin Francis McIsaac
Personal details
Born(1845-11-10)November 10, 1845
Halifax, Nova Scotia
DiedDecember 12, 1894(1894-12-12) (aged 49)
Windsor, Berkshire, England
Cause of deathHeart attack
Resting placeHoly Cross Cemetery, Halifax
Political partyConservative
Spouse
(m. 1870)
Children9
Signature

Sir John Sparrow David Thompson PC KCMG QC (November 10, 1845 – December 12, 1894) was a Canadian lawyer, judge and politician who served as the fourth prime minister of Canada from 1892 until his death. He had previously been fifth premier of Nova Scotia for a brief period in 1882, and as of 2024, is the only prime minister who was previously a provincial premier.

Thompson was born in Halifax, Nova Scotia. He trained as a lawyer and was called to the bar in 1865. Thompson was elected to the Nova Scotia House of Assembly in 1877 as a representative of the Conservative Party. He became the provincial attorney general the following year, in Simon Holmes' government, replaced Holmes as premier in 1882. However, he served for only two months before losing the 1882 general election to the Liberal Party. After losing the premiership, he accepted an appointment to the Nova Scotia Supreme Court.

In 1885, Thompson entered federal politics at the personal request of Prime Minister John A. Macdonald, becoming Minister of Justice. In that role he was the driving force behind the enactment of the Criminal Code. Thompson became prime minister in 1892, following the retirement of John Abbott. He was the first Roman Catholic to hold the position. On a trip to England in 1894, Thompson unexpectedly suffered a heart attack and died, aged 49. He is the second and most recent Canadian prime minister to have died in office, after John A. Macdonald.