| Santai County | |
| Other Name: | Tongchuan, Tungchwan |
| Postal Code Type: | Postal code |
| Settlement Type: | County |
| Coordinates: | 31.0958°N 105.0936°W |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sichuan |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Mianyang |
| Seat Type: | County seat |
| Area Total Km2: | 2660.58 |
| Population As Of: | 2020 census |
| Population Density Km2: | auto |
| Population Total: | 955800 |
| Timezone: | China Standard |
| Utc Offset: | +8 |
| Population Footnotes: | [1] |
Santai County (Chinese: t=三台縣|s=三台县|w=San1-t῾ai2 Hsien4|p=Sāntái Xiàn; Sichuanese romanization: San-t῾ai Shien; formerly known as Tungchwanfu, Sichuanese romanization: Tongchuanfu) is a county under the administration of the prefecture-level city of Mianyang, in the northeast of Sichuan Province of China. It has an area of 2660.58km2. According to the 2020 census, its population stands at 955,800.
Santai County comprises 31 towns and 2 townships:[2]
See main article: Quakerism in Sichuan. During the late 19th and first half of 20th century, Tungchwan was one of the mission centres of the Friends' Foreign Mission Association (FFMA),[3] being the largest mission branch of FFMA's Northern District. Quaker-affiliated hospital, meeting house, boys' school and girls' boarding school were built during this period.[4] The British political economist and missionary Audrey Donnithorne was born at a Quaker hospital in Santai.[5]