A character in the British film The Ruling Class starring Peter O'Toole

One of the Piranha Brothers in a sketch from the British comedy programme Monty Python's Flying Circus

Reece Dinsdale, a British actor

Shirley Dinsdale, an American ventriloquist

Walter Dinsdale, a Canadian politician

George Dinsdale, a British-born Canadian politician

Dinsdale railway station, a railway station that serves Middleton St George in the borough of Darlington, England

Low Dinsdale, a village in North-east England