Gillian Webb married name Gillian Parker^[1] (born 12 January 1956) is a retired British rower, who competed in the Olympic Games.

In July 1975 Webb won three gold medals in the coxless pair with Lin Clark, rowing for a Civil Service and Stuart Ladies composite, the coxed fours and quadruple sculls, at the 1975 National Rowing Championships.^[2][3] The following month she was part of the coxed four crew that finished in ninth place at the 1975 World Rowing Championships.^[1]

She competed in the women's coxed four event at the 1976 Summer Olympics, finishing in eighth place.^[4] In 1979 she competed in her second World Championships, rowing in the coxed fours again, finishing in tenth place.^[1] Also in 1979 she was part of the composite crew that won the coxed fours at the National Championships.^[5]