Delphine Py-Bilot (born 27 January 1979 in Montpellier) is a French professional triathlete.

By then she was a well known triathlete in France, having won the French Championships in all age categories: in 1994 in the class «minime», in 1996 as «cadette», and in 1998 and 1999 as a «junior».

At the Mazda London Triathlon (2 August 2009), for instance, she placed 7th and outdid younger top elite triathletes like Jodie Stimpson (8th), Sophie Coleman (9th), and Maxine Seear (10th).

The race was won by Helen Jenkins Tucker and, though not being an ITU triathlon, always attracts top elite athletes.

In 2011, however, the club decided to boycott this famous circuit and in 2011 Delphine Py will represent Charleville Triathlon Ardennes, taking part in the Championship for her last time.