The Lechang–Guangzhou Expressway (simplified Chinese: 乐昌-广州高速公路; traditional Chinese: 樂昌-廣州高速公路), designated as G0423 and commonly abbreviated as Leguang Expressway (Chinese: 乐广高速) is an expressway in Guangdong province, China linking the cities of Lechang and Guangzhou. This expressway is a branch of G4 Jinggang'ao Expressway. It was formerly called S1 Guangle Expressway, then during the introduce of 71118 extension of NTHS, was numbered as G4W3 from 2013 to 2017.