Pulau Ketam ("Crab Island", Jawi: ڤولاو کتم, simplified Chinese: 吉胆岛; traditional Chinese: 吉膽島; pinyin: Jídǎn Dǎo) is an island located off the coast of Port Klang, Selangor, Malaysia.

The island is home to two predominantly Chinese fishing villages founded circa 1880.

The main thoroughfares are narrow concreted pavements, whilst in the residential areas, the older rickety wooden plank bridges can still be seen.

Daily ferry services link the island to Port Klang jetty on the mainland.

Pulau Ketam is featured as the main filming location for 2015 Malaysian movie, Paint My Love.