St Clair is a leafy residential suburb of Dunedin, New Zealand. It is located on the Pacific Ocean coast five kilometres from the city centre on the southwesternmost part of the coastal plain which makes up the southern part of the urban area, and also climbs the slopes of Forbury Hill immediately to the west of this plain.
St Clair's main geographical features are St Clair Beach, the western end of the long beach (Ocean Beach) which stretches along the city's southern shore, and the promontory of Forbury Hill which rises 159 metres (522 ft) above the plain. The summit of the hill lies within the grounds of St Clair Golf Course, in the west of the suburb.
St Clair Beach is a popular summer destination for Dunedinites. It is one of the South Island's more popular surfing venues and is also home to the St Clair Surf Life Saving Club. At the western end of the beach, under the shadow of Forbury Hill, lies the St Clair Hot Salt Water Pool, an open-air public swimming pool nestled within rocks a handful of metres from the sea.The beach is also the site of the city's annual "midwinter plunge", which sees residents brave the chilly waters every year at the winter solstice. The beach's sea wall, esplanade and oceanway were rebuilt and renovated in 2004. In recent years the esplanade area has become a hub of culture with many cafes, restaurants and bars.