Philippe Pierre Streiff (26 June 1955 – 23 December 2022) was a French racing driver. He participated in 55 Formula One Grands Prix, debuting on 21 October 1984. He achieved one podium, and scored a total of 11 championship points.

A pre-season testing crash at the Jacarepaguá circuit in Rio de Janeiro in 1989 with AGS left him a quadriplegic and thus using a wheelchair, with the quality of the care he received in the aftermath having been called into question, even if the accident itself was so serious the roll-bar broke on impact.

Streiff organised the Masters Karting Paris Bercy.

In early 1994, Streiff made a bid to purchase Ligier in partnership with Hughes de Chaunac. The bid had the support of the similarly Renault-powered Williams F1 team, who intended to turn Ligier into a 'junior' team. The bid was unsuccessful.

Belgian Luc Costermans, who had broken the World blind road speed record in late 2008, dedicated his record to Streiff.

Streiff died on 23 December 2022, at the age of 67.