Benjamin Charles Prowse (10 December 1862 – 22 February 1930) was a Canadian merchant and politician.
He was born near Charlottetown, the son of William Prowse and attended public school there.
Prowse also helped establish Carter and Company Limited and served as its president.
In 1911, he was summoned to the Senate of Canada on the advice of Wilfrid Laurier representing the senatorial division of Charlottetown, Prince Edward Island.
In 1929, he married Clara Eliza Isabelle MacMillan; his first wife had died a year earlier.