Roger Federer is a Swiss former professional tennis player. Federer was ranked world No. 1 in singles by the Association of Tennis Professionals (ATP) for 310 weeks, including a record 237 consecutive weeks, and finished as the year-end No. 1 five times. He won 103 singles titles on the ATP Tour, the second most of all time, including 20 major men's singles titles (among which a record eight men's singles Wimbledon titles, and an Open Era joint-record five men's singles US Open titles) and six year-end championships.

Federer was born on 8 August 1981 in Basel, Switzerland. A member of the Federer family, his Swiss father, Robert Federer, is from Berneck in the canton of St. Gallen and his Afrikaner mother, Lynette Federer (née Durand), is from Kempton Park, Gauteng, in South Africa. He has one sibling, his older sister, Diana, the mother of twins. Since Federer's mother is South African, he holds both Swiss and South African citizenship. He is related to Swiss prelate Urban Federer and Swiss politician Barbara Schmid-Federer.