Laira /lɛˈrə/, previously recorded as Lary poynte (1638) or the Leerie (1643), was originally the name given to that part of the estuary of the River Plym from the Cattewater up to Marsh Mills in Plymouth, Devon, England. The name may derive from the Celtic word llaeru meaning 'to ebb or grow shallow'.

The A379 road and the disused Plymouth to Yealmpton railway line both cross the estuary just above the Plymouth suburb of Cattedown by two bridges both known as Laira Bridge.

The name now also refers to the area of Plymouth around the Laira Traction Maintenance Depot. Much of the housing in the area was built around 1900 for employees of the rail depot. There is a memorial plaque to the men of Laira who died in the Great War along Old Laira Road. Also situated on Old Laira Road is the old Police / Fire Station which is currently used as a library. Laira Green Primary school is situated in the area, as well as a disused United Reformed Church.