Megan Leanne Marcks (née Still), OAM[1] (born 19 October 1972) is an Australian former national, Olympic and world champion rower.

[3] In 1991 she first competed at the national level with Kate Slatter when they contested the Australian women's pair championship title in an AIS composite crew.

[4] In 1993 she was selected in the New South Wales' state women's coxless four to contest the ULVA Trophy at the Interstate Regatta within the Australian Rowing Championships.

They made the Olympic final in the coxless four, a good result given their lack of international racing experience but finished in overall sixth place.

[9] With Snook and Dobson changed out for Courtney Johnstone and Gina Douglas, Slatter and Marcks stayed together in the coxless four into 1993 and they competed at the 1993 World Rowing Championships in Racice where again they were last in the A final and achieved a sixth place.

[2] Marcks is honoured within her home city of Queanbeyan (New South Wales, Australia) by the naming of "Megan Still Court", located adjacent to the Queanbeyan–Palerang Regional Council chambers.