Tintu Luka (born 26 April 1989) is an athlete from India. She is from the small village of Valathode in Kannur, Kerala, India. She is the national record holder in the women's 800-metre race. She is coached by P.T. Usha at the Usha School of Athletics, Koyilandy, Kerala, and is supported by Olympic Gold Quest.In 2008, Luka won a silver medal in the 800-metre race at the Asian Junior Athletics Championship in Jakarta.At 2010 Commonwealth Games Luka finished in sixth place in the women's 800m with a timing of 2:01.25s.PT Usha responded to this performance, saying that Tintu Luka had not been exposed to such a large crowd before and that the crowd's applause and cheering could have made her lose concentration and run faster without prior planning.

Tintu Luka won the bronze medal in the women's 800 metres event of the track and field competitions at the Asian Games 2010. Tintu, who had a disappointing finish in the 2010 Commonwealth Games, led the pack right from the start, but couldn't keep pace in the last 50 metres and finished third with a timing of 2:01.36 seconds.In the second of the three semi-finals for 800 metres event at the London 2012 Olympic Games, she finished sixth in her heat clocking an 1:59.69 seconds her seasons best, but could not qualify for the finals.For her performance at the Olympic Games, the Government of Kerela awarded her INR200000 (US$3,100) and will provide her with a job in a gazetted rank.On October 1, 2014 Luka won the Silver Medal in the 800m sprint at the Asian Games held at Incheon, South Korea.She was also the part of the team that won the Gold Medal in the 4 X 400 m relay at the 2014 Asian Games.The team clocked 3:28:68 to break the Games Record. This is India’s 4th consecutive gold in the event since 2002.Tintu Luka won Arjuna Award for Athletics in 2014.