Gower (Welsh: Gŵyr) is a constituency of the Senedd. It elects one Member of the Senedd by the first past the post method of election. It is also one of seven constituencies in the South Wales West electoral region, which elects four additional members, in addition to seven constituency members, to produce a degree of proportional representation for the region as a whole.

The constituency has elected a Labour member since the assembly was created in 1999. However in 2007 and 2016 the party won narrow majorities. The AM from 1999 to 2016 Edwina Hart was Minister for Business, Enterprise, Technology and Science from 2011 to 2016.

The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Gower Westminster constituency. It is entirely within the preserved county of West Glamorgan.

The other six constituencies of the region are Aberavon, Bridgend, Neath, Ogmore, Swansea East and Swansea West.

In general elections for the Senedd, each voter has two votes. The first vote may be used to vote for a candidate to become the Member of the Senedd for the voter's constituency, elected by the first past the post system. The second vote may be used to vote for a regional closed party list of candidates. Additional member seats are allocated from the lists by the d'Hondt method, with constituency results being taken into account in the allocation.