Ao Nang (Thai: อ่าวนาง) is a small resort town and subdistrict in the Mueang Krabi District of Krabi Province, Thailand.

Ao Nang is a central point of the coastal province of Krabi, Thailand. The town consists chiefly of a main street, which is dominated by restaurants, pubs, shops and other commerce aimed at tourists. The main beach is used by sunbathers to a certain extent, but there are a large number of longtail boats which offer access to other beaches on the mainland and on nearby islands.

There are a number of scuba diving centers, most of which offer basic diving courses. The islands outside Ao Nang are relatively easy to access and uncrowded compared to many of the diving sites around Phi Phi Island. Climbing is another activity widely available through centers in Ao Nang, although most of the climbs are actually in the areas around the Railay, Tonsai and Phra Nang beaches.

The main beach at Ao Nang is the main departure point for boats to a number of places, including the nearby resort of Railay (or Rai Leh), which cannot be accessed by road, Poda Island and Chicken Island. In December 2004 Ao Nang was hit by a tsunami. Ao Nang's nightlife centers around three main areas, which are known locally as "Centerpoint", "The Soi" and "Bamboo Soi". Both Centerpoint (located along the main beach road) and The Soi (about 200 meters up from the beach) contain bars offering thumping loud music, bargirls and free pool. The strip of bars along Bamboo Soi (about 500 meters up from the beach) are a bit quieter and have nice views of Ao Nang's famous limestone cliff. Popular bars in Ao Nang include KR Bar, Rocky Bar, Star Bar, Moo 2 House and Chilli Bar.