| Allan Welsh | |
| Fullname: | Allan Clifford Welsh |
| Birth Date: | 1994 2, df=yes |
| Birth Place: | Adelaide, Australia |
| Height: | 192cm |
| Position: | Central defender Defensive midfielder |
| Currentclub: | Adelaide Comets |
| Clubnumber: | 22 |
| Youthyears1: | –2011 |
| Youthclubs1: | SASI |
| Youthyears2: | 2010–2012 |
| Youthclubs2: | Adelaide United |
| Years1: | 2013–2014 |
| Caps1: | 39 |
| Goals1: | 3 |
| Clubs1: | Croydon Kings |
| Years2: | 2014–2015 |
| Caps2: | 16 |
| Goals2: | 0 |
| Clubs2: | Newcastle Jets |
| Years3: | 2015 |
| Caps3: | 8 |
| Goals3: | 1 |
| Clubs3: | Croydon Kings |
| Years4: | 2015– |
| Caps4: | 195 |
| Goals4: | 78 |
| Clubs4: | Adelaide Comets |
| Nationalyears1: | 2011 |
| Nationalteam1: | Australia U-20 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Club-Update: | 19 September 2024 |
| Nationalteam-Update: | 11 May 2015 |
Allan Clifford Welsh (born 18 February 1994) is an Australian professional footballer who plays as a central defender for Adelaide Comets in the National Premier Leagues.
On 12 September 2014 he signed his first senior professional contract with A-League side Newcastle Jets.[1] At the end on the 2014–15 season he was released from the club and returned to Croydon Kings in the National Premier Leagues.