Warsash is a village in southern Hampshire, England, situated at the mouth of the River Hamble, west of the area known as Locks Heath. Warsash is in the Borough of Fareham. The village lies in the Hook-with-Warsash parish, with the village of Hook.
Before the 19th century what is now known as Warsash was a number of separate hamlets; Warsash itself; Hook to the south at the mouth of the River Hamble; Newtown between Hook and Warsash and Chilling on Southampton Water. Hook was of earlier importance, as a 'dockyard' during the Hundred Years' War. At the end of this war Hook's importance declined, and for the next 300 years Hook, Chilling and Warsash continued as hamlets making livings from fishing and smuggling.
In 1807 the shipbuilder George Parsons, who had lost the lease of his former shipyard up-river at Bursledon, began construction of a shipyard at Warsash at a site where the present Shore Road was later built; all the buildings at the former Bursledon site, including a graving shed and a mould-loft, were dismantled and re-erected at Warsash.
In the 19th century Warsash started to expand in size and importance when shipbuilding moved across the river from Hamble-le-Rice. Along the coast Newtown was also expanding, the salterns had expanded into a chemical works and an iron smelting industry had started. By the mid-19th century the two communities had been linked by road, with housing along these roads filling the open space to create one community.
By the end of 19th century the lack of threat from the French had sent the shipbuilding industry into decline. The iron and chemical works were also declining. The main sources of income for the area were the burgeoning strawberry growing industry and traditional fishing and agriculture. Alongside these industries grew businesses providing refreshments and services to visitors to the area, especially those of the new leisure sailing pursuits. At the crossroads in the centre of the village there is an unusual clock tower built around 1900, an example of the prosperity the leisure industry brought.