Nina Ligon, Thai name Rujiraporn Lamsam Ligon (Thai: รุจิราภรณ์ ล่ำซำ ลีเกิ้น (ณีนา); born 8 October 1991) is a Thai-American equestrian, who competed for Thailand in the Individual eventing at the 2012 Summer Olympics.

[3] A dual US and Thai national, she is the youngest daughter of American businessman Austin Ligon and Samornmitr Lamsam (a daughter of Thai banker Kasem Lamsam).

[5] At the 2007 Southeast Asian Games, she won the individual eventing event, and was part of the Thai team that won the team gold medal.

[3] At the 2010 Asian Games, Ligon was part of the Thai team that won silver, finishing 4th individually.

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