List of MPs for constituencies in Wales (1970–February 1974)

This is a list of members of Parliament (MPs) elected to the House of Commons of the United Kingdom by Welsh constituencies for the Forty-Fifth Parliament of the United Kingdom (1970–February 1974).

Most MPs elected for Welsh constituencies at the 1970 United Kingdom general election, held on 18 June 1970, served a full term, apart from Independent MP S. O. Davies who died in 1972.

The list is sorted by the name of the MP.

By-elections
There was one by-election during this period:


 * 1972 Merthyr Tydfil by-election was won by Labour candidate Ted Rowlands