Nicolas Peifer (born 13 October 1990 in Strasbourg) is a French wheelchair tennis player. In doubles, Peifer has completed the career Super Slam, having won all four majors, a Paralympic gold medal in 2016, and the Wheelchair Tennis Masters over the course of his career.
In 2007 Peifer won the Junior Masters.
In December of 2022 Peifer was given a suspended six-month prison sentence by a court in France for sexually harassing a minor aged under 15 years. The initial charge of "sexual proposition made to a minor under 15 by electronic means" was changed to "sexual harassment" after a court hearing in Peifer's hometown of Sarreguemines in north-eastern France .