| Joel Mattsson | |
| Birth Date: | 17 March 1999 |
| Birth Place: | Finland |
| Height: | 1.80m |
| Position: | Right midfielder |
| Currentclub: | Vejle |
| Youthclubs1: | Mariehamn |
| Years1: | 2015–2018 |
| Clubs1: | Mariehamn |
| Caps1: | 50 |
| Goals1: | 1 |
| Years2: | 2016 |
| Clubs2: | → Åland (loan) |
| Caps2: | 17 |
| Goals2: | 3 |
| Years3: | 2019–2020 |
| Clubs3: | HIFK |
| Caps3: | 44 |
| Goals3: | 5 |
| Years4: | 2021– |
| Clubs4: | Vejle |
| Caps4: | 0 |
| Goals4: | 0 |
| Years5: | 2021 |
| Clubs5: | → Mariehamn (loan) |
| Caps5: | 24 |
| Goals5: | 2 |
| Nationalteam1: | Finland U19 |
| Club-Update: | 13:51, 31 December 2021 (UTC) |
Joel Mattsson (born 17 March 1999) is a Finnish professional footballer who plays for Danish club Vejle BK, as a midfielder.
On 23 December 2018, HIFK announced the signing of Mattsson.[1] In January 2020 Danish club Vejle Boldklub confirmed that Mattson would join the club on a one-and-a-half-year contract from January 2021.[2] He moved on loan to IFK Mariehamn for the 2021 season.[3]