Kieran Tuntivate (Thai: คีริน ตันติเวทย์) is a Thai-American distance runner, who specializes in the 10,000 metres. After running collegiately with Harvard University, Tuntivate turned professional with the Bowerman Track Club.

Tuntivate was born in Washington, DC, United States, and attended the High School Charter School of Wilmington in Wilmington, Delaware.

Tuntivate's first major international result was at the 2018 Asian Games, where he finished fourth in the 10,000 metres in 30:29.04.^[4] The following year he won the 5000 and 10000 metres at the Southeast Asian Games.

Tuntivate qualified for the 2020 Summer Olympics in Tokyo with his time of 27:17.14. In addition, he is the first Thai (mixed American) ever who entered 10,000 metres and finished rank 23 in 29.01.92.^[5]

Year	Competition	Venue	Position	Event	Notes
Representing  Thailand
2018	Asian Games	Central Jakarta, Indonesia	DNS	5,000 m	DNS
			3rd	10,000 m	30:29.04
2019	Southeast Asian Games	New Clark City, Philippines	1st	5,000 m	14:31.15
			1st	10,000 m	30:19.28
2021	Olympic Games	Tokyo, Japan	23rd	10,000 m	29:01.92
2022	World Championships	Eugene, United States	40th (h)	5000 m	14:19.28
2023	Southeast Asian Games	Phnom Penh, Cambodia	1st	1,500 m	3:58.51

Outdoor

• 1500 metres – 3:37.41 (Los Angeles, CA (USA))
• Mile – 3:57.87 (Lipscomb Academy, Nashville, TN (USA))
• 5000 metres – 13:15.67 (Stadium De Veen, Heusden-Zolder, (Belgium))
• 10000 metres - 27:17.14 (JSerra Catholic HS, San Juan Capistrano, CA (USA))

Indoor

• 1000 metres – 2:28.14 (Boston, MA (USA))
• Mile – 3:57.36 (Boston Univ. Track & Tennis Center, Boston, MA (USA))
• 3000 metres – 7:49.15 (Boston Univ. Track & Tennis Center, Boston, MA (USA))
• 5000 metres – 13:08.41 (Boston Univ. Track & Tennis Center, Boston, MA (USA))