Defending champion Chris Evert defeated Martina Navratilova in a rematch of the previous two years' finals, 2–6, 6–3, 6–3 to win the women's singles tennis title at the 1986 French Open.

It was her seventh French Open singles title and her 18th and last major singles title overall, an Open Era record.

This also marked the 13th consecutive year in which Evert won a major, another Open Era record.

The seeded players are listed below.

Chris Evert is the champion; others show the round in which they were eliminated.