蓝海龙（学名：Syngnathus cyanospilus）为海龙科海龙属的鱼类。分布于非洲东岸、印度、新加坡、日本、菲律宾、印度尼西亚以及东海、南海等海域。

Hippichthys cyanospilos, commonly known as the blue-spotted pipefish or bluespeckled pipefish, is a marine fish belonging to the Syngnathidae family, native from the Indo-Pacific area.