Ma On Shan may refer to:
- Ma On Shan (peak) (), a mountain in the New Territories of Hong Kong
- Ma On Shan (town), a New Town in the New Territories on the foot of Ma On Shan mountain
- Ma On Shan line, now part of Tuen Ma line, a railway line in Hong Kong
- Ma On Shan station, an elevated train station in Hong Kong
- Ma On Shan Village, a historic mining village in Hong Kong
See also
- Ma'anshan (), a city in Anhui Province, People's Republic of China
- Maanshan Nuclear Power Plant in Pingtung County, Taiwan