River Island is a London-headquartered high street fashion brand, which operates in a number of worldwide markets. Set up in 1948, by Bernard Lewis and his brothers in London. River Island is a private company owned by the Lewis family.

There are over 350 River Island stores across the UK, Ireland and internationally (over 250 of which are in the UK and Ireland), as well as six dedicated online sites.

As of 2012, River Island no longer has physical shops in Singapore. In 2013, online fashion retailer Zalora began acting as a bridge between River Island and most of South-East Asia.