Muhammad Nazrul bin Ahmad Nazari, better known as Nazrul Nazari, is a Singaporean professional footballer who plays as a full-back or winger for Singapore Premier League club Hougang United, whom he captains and the Singapore national team.

Hougang United Football Club is a professional football club based in Hougang, Singapore. The club competes in the Singapore Premier League, the top tier of Singaporean football. Founded in 1998 as Marine Castle United, the club changed its name to Hougang United in 2011. Nicknamed the Cheetahs, Hougang United has played its home games at Hougang Stadium since its formation. Currently, the club are playing their home games at the Jalan Besar Stadium, as the Hougang Stadium is undergoing renovation.