| Khin Thet Htay | |
| Office: | Acting First Lady of Myanmar |
| President: | Myint Swe |
| Predecessor: | Cho Cho |
| Term Start: | 1 February 2021 |
| Term End: | 22 July 2024 |
| Successor: | Kyu Kyu Hla |
| President1: | Myint Swe |
| Predecessor1: | Su Su Lwin |
| Term Label: | In role |
| Term Start1: | 21 March 2018 |
| Term End1: | 30 March 2018 |
| Successor1: | Cho Cho |
| Office2: | Second Lady of Myanmar |
| Vicepresident2: | Myint Swe |
| Term Start2: | 30 March 2016 |
| Predecessor2: | Nang Shwe Hmone |
| Office3: | Vice President of Myanmar Women's Affairs Federation |
| Term Start3: | early 2009 |
| Term End3: | ? |
| Office4: | Patron of Yangon Region Women's Affairs[1] |
| Spouse: | Myint Swe |
| Birth Place: | Burma |
| Children: | 2 |
| Native Name Lang: | my |
Khin Thet Htay (Burmese: ခင်သက်ဌေး) is the current Second Lady of Myanmar and former acting First Lady of Myanmar.[2] [3] [4] She initially became acting First Lady when her spouse became acting President for ten days in March 2018 and again after the coup d'état on 1 February 2021. She also served as Vice President of Myanmar Women's Affairs Federation in early 2009.[5]
Her husband Myint Swe was sworn in as acting president under the Constitution of Myanmar, which also called for Pyidaungsu Hluttaw to select a new President within seven days of Htin Kyaw's resignation.
On 2 March 2023, the military government awarded her the title of Agga Maha Thiri Thudhamma Theingi, one of the country’s highest religious honors, for significantly contributing to the flowering and propagation of Buddhism.[6]