Mumbles (Welsh: Mwmbwls) is a district of Swansea, Wales, located on the south-east corner of the unitary authority area.

Archaeological evidence indicates that an ancient submerged forest was located on what is now the foreshore of Mumbles Bay[citation needed] The bones of bears, wolves, hyenas, deer, rhinoceros and mammoth have been discovered there.

Also found around the bays of Mumbles and Gower are the bones of sixteen Ice Age mammals, including a mammoth tooth measuring ten centimetres across, which is on display in Swansea Museum.

When the site was being extended in 1860, workmen removing a bank of earth on the south side of the original building accidentally broke up a Roman tessellated pavement, or mosaic floor.

In this area it has been reported that Romano-British gentlemen of Roman Wales may have eaten oysters from the oysterbeds off the shore below the site at Oystermouth, or Ystumllwynarth.

Soon after it was built in 1898, the end of the Mumbles Pier became home to bandstand concerts and on the landward side was a winter garden, both of which attracted large crowds.

It was advertised by the Swansea and Mumbles Railway as 'the prettiest pier in the Bristol Channel' and the 'Mumbles Press' on 13 April 1911 featured the skating rinks as well as Hanney's select military band.

In the 1950s, a large entertainment centre on the end of the pier included dodgem cars, coconut shies and other fairground attractions.

The 'Mumbles Mile' began to decline in popularity during the 1990s because of pressure from the local council and increased competition from Swansea's night attractions.As of 2025[update], there are only five pubs on the 'mile', whereas there were once upwards of 20.