Route 4 (Chinese: 四號幹綫) is an east-west road artery along the Hong Kong Island, Hong Kong.

The current Route 4 could be divided into two sections: From Chai Wan the route travels west towards Central via Island Eastern Corridor, Central–Wan Chai Bypass.

Part two of the roadway extension, which took Route 4 from Connaught Road Central to Kennedy Town via the Connaught Road West Flyover (a.k.a.

Rumsey Street Flyover),[clarification needed] was completed in 1997.

The areas covered by the route include Kennedy Town, Shek Tong Tsui, Sai Ying Pun, Sheung Wan, Central, Wan Chai, Causeway Bay, Quarry Bay, Taikoo Shing, Shau Kei Wan, A Kung Ngam, Heng Fa Chuen and Chai Wan.