| Clubname: | Unity |
| Fullname: | Unity Football Club |
| Founded: | 1875 |
| Dissolved: | 1896? |
| Ground: | Green Man Hotel, Blackheath |
| Mgrtitle: | Secretary |
| Manager: | F. S. Mowser |
| Pattern La1: | _thinnavyhoops |
| Pattern B1: | _thinnavyhoops |
| Pattern Ra1: | _thinnavyhoops |
| Leftarm1: | DE3163 |
| Body1: | DE3163 |
| Rightarm1: | DE3163 |
| Shorts1: | 00006B |
| Socks1: | DE3163 |
Unity F.C. was an English association football club from Blackheath, founded in 1875.
The club was the works side of the William Tarn & Co department store[1] in Elephant & Castle, and the club's three secretaries all give the store's address (165 Newington Causeway) as the club's correspondence address.[2] In common with other department store sides in the area, the club was a member of the West End Football Association, and won the Challenge Cup in 1885[3] and 1889,[4] and was also runner-up in 1884[5] and 1890.[6]
The club's first recorded match was in November 1876 against Prairie Rangers.[7] Unity was originally of little account; in 1877 it claimed to have won only one match the previous season and only scored two goals.[8] However, in the 1877–78 season it won 8 and drew 8 of its 20 matches, scoring 14 and conceding 11.[9]
Possibly as a result of this improvement the club entered the FA Cup in 1878–79. However, having been drawn to play the Remnants club, Unity withdrew.[10]
It was the club's only FA Cup entry, even though the club remained members of the Football Association until 1883, and active until as late as 1895;[11] the club was still of status enough in 1888 to play Luton Town on Boxing Day.[12] A Unity F.C. was merged into the All Saints club of Middlesex at the start of 1896 and there is no further record of the Tarn club afterwards.[13]
The club played in navy blue and cerise.[14]
The club played at the Green Man Hotel in Blackheath.[15]