Clwyd is a preserved county of Wales and was a Welsh county (1974–1996).
Clwyd may also refer to:
Places Clwyd (constituency), a Senedd electoral area since 2026 River Clwyd () Vale of Clwyd, its valley Clwydian Range (or Clwyds), a series of hills
Organisations Clwyd County Council, 1974–1996 Clwyd Football League, 1974–2011 Clwyd Scout Area (The Scout Association)
People Ann Clwyd (1937–2023), Welsh Labour politician Baron Clwyd, a title of nobility since 1919 John Herbert Roberts, 1st Baron Clwyd (1863–1955), Welsh Liberal politician Trevor Roberts, 2nd Baron Clwyd (1900–1987), Welsh peer and barrister Hafina Clwyd (1936–2011), Welsh writer
See also High Sheriff of Clwyd, an office since 1974 Lord Lieutenant of Clwyd, an office since 1974 Theatr Clwyd (also Clwyd Theatr Cymru), an arts venue in Mold Radio Clwyd (1981–1993)