Gladys Eileen Marley (née Pidgeon, 21 March 1906 − 19 November 2002) was a New Zealand swimmer, who represented her country at the 1930 British Empire Games in Hamilton, Ontario.

She grew up in Sawyers Bay, Whanganui, Palmerston North and Auckland; her father worked with the railways and consequently the family moved around the country.

After leaving Palmerston North Girls' High School, Marley began working as a clerk at the Milne & Choyce department store in Auckland, aged 14.

[3] Marley was the only female member of the New Zealand team that travelled to the first British Empire Games in Canada in 1930, and was only allowed to go after her mother agreed to pay her own way to chaperone her daughter.

[2] She recorded a personal best in finishing sixth in the final of the 200 yards breaststroke, won by Cecelia Wolstenholme of England in world-record time.