Peter Charles Larkin, PC (May 14, 1855 – February 3, 1930) was a Canadian businessman, diplomat and political patron.

[1] Larkin, a world traveller who specialized in finding foodstuffs for import, was best known for founding the Salada Tea Company in 1892.

[2] This innovation proved popular and soon became the industry standard, helping to establish Salada as a leading seller of tea in Canada and the northeastern U.S., with factories in Toronto, Montreal and Boston.

He was one of several wealthy supporters of the Liberal Party of Canada who contributed furniture, china and silver to Laurier House, the residence of Mackenzie King.

As Prime Minister of Canada, Mackenzie King appointed Larkin as Canadian high commissioner to the United Kingdom, a position he held until his death.