Halong

Halong may refer to:


 * Ha Long, also known as Hong Gai, the capital city of Quang Ninh Province, Vietnam
 * Halong Bay, a UNESCO World Heritage site located in Quang Ninh province, Vietnam
 * Halong naval base, an Indonesian Navy (previously Dutch) facility on the island of Ambon
 * Typhoon Halong, a pacific typhoon name.