| Anan Chaisaeng | |
| Birth Date: | 1927 1, df=y |
| Birth Place: | Bang Pakong district, Siam |
| Death Place: | Bang Pakong district, Thailand |
| Nationality: | Thai |
| Occupation: | Police officer |
| Party: | Progress Party TRT |
| Office: | Member of the House of Representatives of Thailand |
| Term Start: | 10 February 1969 |
| Term End: | 12 January 1976 |
| Term Start1: | 18 April 1983 |
| Term End1: | 27 July 1986 |
| Term Start2: | 6 January 2001 |
| Term End2: | 6 February 2005 |
| Children: | Chaturon Chaisang |
Anan Chaisaeng (Thai: อนันต์ ฉายแสง; 20 January 1927 – 23 November 2023) was a Thai police officer and politician. A member of the Progress Party and later the Thai Rak Thai Party, he thrice served in the House of Representatives: from 1969 to 1976, from 1983 to 1986, and from 2001 to 2005.[1]
Chaisaeng died in Bang Pakong district on 23 November 2023, at the age of 96.[2]