| Herman Geelmuyden | |
| Fullname: | Herman Hammy Geelmuyden |
| Birth Date: | 2002 1, df=yes |
| Birth Place: | Stabekk, Norway |
| Position: | Forward, winger |
| Currentclub: | Stabæk |
| Clubnumber: | 10 |
| Youthyears1: | –2017 |
| Youthclubs1: | Stabæk |
| Youthyears2: | 2020–2021 |
| Youthclubs2: | PSV |
| Years1: | 2017–2019 |
| Clubs1: | Stabæk 2 |
| Caps1: | 30 |
| Goals1: | 9 |
| Years2: | 2018–2019 |
| Clubs2: | Stabæk |
| Caps2: | 5 |
| Goals2: | 0 |
| Years3: | 2021– |
| Clubs3: | Stabæk |
| Caps3: | 73 |
| Goals3: | 9 |
| Nationalyears1: | 2017 |
| Nationalteam1: | Norway U15 |
| Nationalcaps1: | 6 |
| Nationalgoals1: | 7 |
| Nationalyears2: | 2018 |
| Nationalteam2: | Norway U16 |
| Nationalcaps2: | 13 |
| Nationalgoals2: | 5 |
| Nationalyears3: | 2018–2019 |
| Nationalteam3: | Norway U17 |
| Nationalcaps3: | 14 |
| Nationalgoals3: | 5 |
| Nationalyears4: | 2022– |
| Nationalteam4: | Norway U20 |
| Nationalcaps4: | 1 |
| Nationalgoals4: | 0 |
| Club-Update: | 13 June 2024 |
| Nationalteam-Update: | 19 November 2022 |
Herman Hammy Geelmuyden (born 22 January 2002) is a Norwegian footballer who plays as a striker for Stabæk.
Hailing from Stabekk, played in Stabæk Fotball from childhood.[1] In 2017, Geelmuyden signed his first professional contract with Stabæk.[2] He made his first-team debut in the 2019 Norwegian Football Cup, playing all of Stabæk's four cup matches in that campaign, and also scoring a goal in the second round. He made his league debut in June 2019 against Kristiansund.
After impressing in a few trials at PSV Eindhoven,[3] Geelmuyden, whose contract with Stabæk expired at the end of 2019, joined the Dutch club in January 2020.[4] Geelmuyden signed a deal until the summer of 2023 and was registered for the club's U19 squad. From the 2020–21 season, he was registered in the U18 squad.