Rahil Gangjee (born 2 October 1978) is a professional golfer from India who currently plays on the Asian Tour, where he has one victory.

Gangjee was born in Calcutta where he still currently resides. He had a decorated amateur career that included the 1997 Sri Lankan Amateur, and the East India Amateur in 1997 and 1999. He would soon become tagged as India's number one amateur in 1999. He turned professional in 2000 and played in his first full season on the Asian Tour in 2004.

Gangjee was a surprise winner in his lone tournament victory at the Volkswagen Masters-China in 2004. It was only his 4th start of the season and 8th career start on Tour. He finished at -15 and won in a playoff over Korea's Mo Joong-kyung. It was a strong field at the Volkswagen Masters that included Ian Woosnam, Nick Faldo, Phillip Price, Jeev Milkha Singh, Des Terblanche and Zhang Lian-wei.

Gangjee would continue playing full time on the tour, not picking up another tournament win between 2004 and 2008. He made 16 of 25 cuts with only one top-10 finish in 2008, not being able to keep his card for 2009. He did however pick up a non-tour event in India in 2008 in June at the PGTI Players Championship on the Professional Golf Tour of India in his home town of Calcutta by a dominating margin of five strokes.