The Tainan City Government (Chinese: 臺南市政府; pinyin: Táinán Shì Zhèngfǔ) is the municipal government of Tainan, Taiwan.

It was formed after the merger of Tainan County and Tainan City in December 2010.

Its chief administrator is the directly elected Mayor of Tainan.

The mayor is elected for a four-year term and limited to serving no more than two terms.

Under the mayor there are 2 deputy mayors, 1 secretary-general, 1 deputy secretary-general and 27 principal officers.