Robert Dennison (14 December 1879 – 10 November 1951) was a British Labour Party politician.
He served as the Member of Parliament for Birmingham King's Norton for five years from 1924-29.
He gained the seat from automotive engineer Sir Herbert Austin of the Conservative Party at the 1924 general election, with a small majority of 133 votes.
Dennison lost his seat to Lionel Beaumont-Thomas; also a Conservative, at the 1929 general election by 491 votes.He previously stood at Walsall and Cleveland, albeit unsuccessfully.