| Type: | Elected |
| On Tai | |
| Year: | 2003 |
| Parl Name: | Sha Tin District Council |
| Member: | Cheng Chung-hang (Independent) |
| Map1: | OnTai |
| Map Entity: | Sha Tin District |
| Map Size: | 250px |
| Region Label: | Legislative Council constituency |
| Region: | New Territories South East |
| District: | Sha Tin |
| Population: | 14,323 (2019)[1] |
| Elects Howmany: | One |
| Electorate: | 9,770 (2019)[2] |
| Previous: | Heng To |
On Tai is one of the 36 constituencies of the Sha Tin District Council. The seat elects one member of the council every four years. It was first created in 2003. The current boundary is loosely based on the areas of Kam Tai Court, Mountain Shore.
| Election | Member | Party | |
|---|---|---|---|
| 2003 | Lee Lap-hong | Democratic | |
| 2005 | Independent | ||
| 2007 | Yeung Cheung-li | DAB | |
| 2012 by-election | Alvin Chiu Man-leong | DAB | |
| 2019 | Osman Cheng Chung-hang | Independent democrat | |