Gymea is a suburb in southern Sydney, in the state of New South Wales, Australia. Gymea is located 26 kilometres south of the Sydney central business district in the local government area of the Sutherland Shire. The postcode is 2227, which it shares with adjacent suburb Gymea Bay.

The Gymea Lily, Doryanthes excelsa is a 6m tall perennial that is prevalent in the area. It was named by the local Eora people and became the inspiration for the suburb's name, by government surveyor W.A.B. Geaves in 1855. The Gymea Lily has been adopted as a symbol of the area and features on the crest of many local organisations. Development in the area has eradicated most of the lilies but many can still be found, a few kilometres south, in the Royal National Park.

I live in Gymea.