51°28′30″N 3°12′02″W / 51.474983°N 3.200509°W
Cardiff City Blue Dragons were a rugby league team formed in 1981. Their home ground was initially Ninian Park, which was also used by Cardiff City F.C. The club spent three seasons in Cardiff before relocating to Bridgend in 1984 as the Bridgend Blue Dragons, and were finally wound up in 1986. The team colours were royal blue shirts with a yellow and white vee. The shorts and socks were also blue.
In 2014, two Rugby League clubs in the city, Cardiff Demons and Cardiff Spartans, merged as Cardiff City Blue Dragons RLFC and the name was revived and a new club formed, with a modernised badge and kit paying homage to the original side. The 1st and 2nd open age sides played senior home matches at Cardiff Arms Park during the 2015 Welsh Conference season. In 2017, they played at The Memorial Ground, Ely, following a partnership with Glamorgan Wanderers RFC. The club includes Wales' first Women's Rugby League side and is the largest in Wales by number of registered players.