1968 French Open – Men's singles

Ken Rosewall defeated Rod Laver in the final, 6–3, 6–1, 2–6, 6–2 to win the men's singles tennis title at the 1968 French Open. It was Rosewall's second French title and fifth Grand Slam tournament title overall. This was the first Grand Slam tournament to be open to professional players, marking a period in tennis history known as the Open Era. Rosewall and Laver, who had not appeared in a Grand Slam tournament since 1956 and 1962 respectively, were among those no longer barred from entering.

Roy Emerson was the defending champion, but lost in the quarterfinals to Pancho Gonzales.

Missing from the tournament were WCT's "Handsome Eight" and top amateurs Manuel Santana, Arthur Ashe, Clark Graebner and Tom Okker.

This was the first major appearance of future champion and world No. 1 Ilie Năstase.