Cobh is a seaport town on the south coast of County Cork, Ireland. With a population of around 13,000 inhabitants, Cobh is on the south side of Great Island in Cork Harbour and home to Ireland's only dedicated cruise terminals. Tourism in the area draws on the maritime and emigration legacy of the town. It was also associated with the RMS Titanic, which was built in Belfast, Northern Ireland.

Facing the town are Spike and Haulbowline islands. On a high point in the town stands St Colman's, the cathedral church of the diocese of Cloyne. It is one of the tallest buildings in Ireland.

The port, which has had several Irish language names, was first called "Cove" ("The Cove of Cork") in 1750. It was renamed by the British as "Queenstown" in 1849 to commemorate a visit by Queen Victoria. The name was changed to Cobh, during the Irish War of Independence, following the passing of a motion by the local administrative council on 2 July 1920. Cobh is a Gaelicisation of the English name Cove, and it shares the same pronunciation. It has no meaning in the Irish language.

In ancient times the area was known as Cuan an Neimheadh (the Harbour of Neimheidh), a figure in medieval Irish legend. Great Island was called Oileán Ard Neimheidh (the high or important island of Neimheidh).