Astronomical Society of Wales (ASW1), 1895-c.1914, held regular meetings in Cardiff.
Astronomical Society of Wales (ASW2), active (1981-c.1994), held regular meetings in Neath and Port Talbot.
Barry Astronomical Society (BarAS), active 1920s.
Bridgend Astronomical Society (BrideAS), founded in 1982 with an average membership of 30. It currently meets once a month at Pyle Church Hal (CF33 6AE), to hear talks by lecturers mostly from Cardiff and Swansea Universities. Group observation sessions are held at various dark sites on a regular basis. In July 1994, Society members built a radio telescope to successfully listen to fragments of Comet Shoemaker-Levy-9 colliding with Jupiter.
Cambrian Astronomical Society (CaAS), existed Cardiff (1960s).
Cardiff Astronomical Society (CardAS1), society first founded 1920s, but short lived (Chapman 1998, 265-6).
Cardiff Astronomical Society (CardAS2), re-established 1975 by Dr. Bob Owens, with an early meeting held at Penylan Observatory in Cyncoed Gardens, Cardiff. Members (300-2016) meet at Cardiff University (CF24 3AA) and use the society observatory at Dyffryn Gardens.
Llynfi Valley Astronomical Society (LVAS), founded 1920s.
Port Talbot Astronomical Society (PTAS), founded (?). Members meet at Mozart Drive Community Centre, Sandfields, Port Talbot.
Swansea Astronomical Society (SwAS), founded 1948-present.