Colin Dowdeswell (born 12 May 1955) is a former professional tennis player who represented, at different times, Rhodesia, Switzerland and the United Kingdom,[1] and who achieved rank as UK No.

Partnering Australian Allan Stone, Dowdeswell finished runner-up in doubles at Wimbledon in 1975.

7 seeds Tom Okker and Marty Riessen in the round of 16 in four sets.

It took Dowdeswell and Stone then five sets to overcome the unseeded team of Dick Crealy and Niki Pilic in the semifinals.

They lost the final to another unseeded tandem, Vitas Gerulaitis and Sandy Mayer, 5–7, 6–8, 4–6.