Razif Sidek (born 29 May 1962 in Banting, Selangor) is a former professional badminton player from Malaysia and coach.
He is the second eldest of the famous five Sidek brothers. Razif and his siblings gained exposure about badminton sport from their father, Haji Mohd Sidek. Under the guidance of his father, Razif and the rest of his siblings were trained to be champions. Razif Sidek is the alumnus of Victoria Institution (batch 1975-1979).
He started to play badminton when he was 7 years old. He loves the sport because his father also plays badminton. When he was a school boy, he played all types of sports beside badminton such as athletics, sepak takraw, table tennis and football and even playing at the state level.
At the age of 9, he entered the state team. He won the MSSM title for both under 15 and under 18 in both categories singles and doubles. When he was 14, he was already in the national junior squad. At 18 years old, he was drafted to the senior team alongside his brothers Misbun Sidek, Jalani Sidek and Ong Beng Teong. In 1979 after finishing high school, he and his brother Jalani were sent to London for 1 month by the BAM for friendly matches. Then in 1980 All England Championship, they reached the semi-final.
His regular partner is his younger brother, Jalani. Razif won a gold medal for Malaysia at the 1982 Commonwealth Games doubles with Ong Beng Teong. They made the nation sit up and take notice when they won the All England Championships in 1982 after beating the Scottish pair, Billy Gilliland and Dan Travers.