St Swithun's Church (alternative spelling Swithin), named after St Swithun who was an Anglo-Saxon bishop of Winchester, can refer to numerous churches:
United Kingdom St Swithun's Church, Great Dalby, Leicestershire St Swithun's Church, Allington, Dorset Church of St Swithin, Bath, Somerset St Swithun's Church, Bathford, Somerset Church of St Swithin, Bicker, Lincolnshire St Swithun's Church, Bintree, Norfolk St Swithun's Church, Bournemouth, Dorset St Swithun's Church, Brookthorpe, Gloucestershire St Swithun's Church, Cheswardine, Shropshire St Swithun's Church, Clunbury, Shropshire St Swithun's Church, Combe, Berkshire St Swithin's Church, Compton Bassett, Wiltshire St Swithun's Church, Crampmoor, Hampshire St Swithun's Church, East Grinstead, West Sussex St Swithun's Church, East Retford, Nottinghamshire Church of St Swithin, Ganarew, Herefordshire St Swithun's Church, Great Chishill, Cambridgeshire St Swithun's Church, Headbourne Worthy, Hampshire St Swithun's Church, Hinton Parva, Wiltshire St Swithun's Church, Hither Green, London St Swithin's Church, Holmesfield, Derbyshire St Swithun's Churches, Kennington, Oxfordshire St Swithun's Church, Kirklington, Nottinghamshire St Swithun's Church, Leonard Stanley, Gloucestershire St Swithin's Church, Lincoln, Lincolnshire St Swithun's Church, Littleham, Devon St Swithin, London Stone, former church in the City of London St Swithun's Church, Martyr Worthy, Hampshire St Swithun's Church, Merton, Oxfordshire St. Swithun's, Nately Scures, Hampshire St Swithin's Church, Pyworthy, Devon St Swithun's Church, Sandy, Bedfordshire St Swithun's Church, Shobrooke, Devon, England St Swithun's Church, Swanbourne, Buckinghamshire St Swithun's Church, Thorley, Isle of Wight St Swithin's Church, Wellow, Nottinghamshire St Swithun-upon-Kingsgate Church, Winchester, Hampshire St Swithun's Church, Woodborough, Nottinghamshire St Swithun's Church, Woodbury, Devon St Swithun's Church, Worcester St Swithin's Church, Magherafelt, Londonderry, Northern Ireland
Elsewhere St Svithun's Church, Stavanger, Norway Stavanger Cathedral, Norway, The cathedral was dedicated to Saint Swithun St Swithun's Church, Saint Lucy, Barbados