| Marco Lund | |
| Fullname: | Marco Lund Nielsen |
| Birth Date: | 1996 6, df=yes |
| Birth Place: | Ansager, Denmark |
| Height: | 1.83 m |
| Currentclub: | Diósgyőr |
| Clubnumber: | 4 |
| Position: | Defender |
| Youthclubs1: | Ansager IF |
| Youthclubs2: | Grindsted GIF |
| Youthclubs3: | FC Midtjylland |
| Youthclubs4: | Esbjerg fB |
| Years1: | 2016–2018 |
| Clubs1: | Esbjerg fB |
| Caps1: | 39 |
| Goals1: | 1 |
| Years2: | 2018–2021 |
| Clubs2: | OB |
| Caps2: | 59 |
| Goals2: | 2 |
| Years3: | 2021–2024 |
| Clubs3: | IFK Norrköping |
| Caps3: | 68 |
| Goals3: | 2 |
| Years4: | 2024– |
| Clubs4: | Diósgyőr |
| Caps4: | 17 |
| Goals4: | 0 |
| Nationalyears1: | 2014–2015 |
| Nationalteam1: | Denmark U19 |
| Nationalcaps1: | 5 |
| Nationalgoals1: | 0 |
| Nationalyears2: | 2016 |
| Nationalteam2: | Denmark U20 |
| Nationalcaps2: | 1 |
| Nationalgoals2: | 0 |
| Nationalyears3: | 2019 |
| Nationalteam3: | Denmark U21 |
| Nationalcaps3: | 2 |
| Nationalgoals3: | 0 |
| Pcupdate: | 12 August 2024 |
| Nationalteam-Update: | 15 February 2022 |
Marco Lund (born 30 June 1996) is a Danish footballer who plays for Hungarian club Diósgyőr.