| Guam Under-23 | |
| Badge Size: | 185px |
| Nickname: | Matao (The Noblemen)[1] |
| Association: | Guam Football Association |
| Sub-Confederation: | EAFF (East Asian) |
| Confederation: | AFC (Asia) |
| Coach: |  Dominic Gadia |
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| Socks1: | 000049 |
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| Largest Win: | 6–2 (Dededo, Guam; 20 July 2019) |
| Largest Loss: | 6–0 (Phu Tho, Vietnam; 6 September 2023) |
The Guam national under-23 and Olympic football team represents Guam, an overseas territory of the United States at the international under-22 and under-23 football competitions. It is controlled by the Guam Football Association and is affiliated with the Asian Football Confederation's East Asian Football Federation region.
The team's current head coach is former Guamanian international Dominic Gadia.
In 2019, the Guam national under-23 was established to compete in the 2019 edition of Marianas Cup after it was regulated to be an event for under-23 players. The team was coached by national team coach Karl Dodd and was consisted with mainly players selected from the U19 category alongside five U23 players.[2] The team led by Dodd managed to help Guam winning their seventh title of Marianas Cup after a 6–2 victory against Northern Mariana Islands national under-23 side.[3]
In 2023, the Guam FA decided to officially emerged an under-23 national team to ỉmprove the competitiveness of the players to serve the Guam national team.[4] Therefore, the Guam under-23 team made their first appearance in the AFC U-23 Asian Cup qualifiers during the 2024 edition.[4] On 9 September 2023, Guam won their first point in an official under-23 competition following the 1–1 tie against the Singapore under-23s, with their only goal scored by Riku Meyar.[5]
| Name | Nationality | Period | Competitions | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Karl Dodd | 2019 | 1 | 1 | 0 | 0 | 6 | 2 | 2019 Marianas Cup | ||
| Dominic Gadia | 2023- | 5 | 1 | 1 | 3 | 3 | 15 | 2023 Marianas Cup 2024 AFC U-23 Asian Cup qualification[6] |
| AFC U-22/U-23 Championship Record | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hosts / Year | Result | Position | width=20 | width=20 | width=20 | width=20 | width=20 | width=20 | ||||||
| 2013 | Did not enter | |||||||||||||
 2016 | ||||||||||||||
| 2018 | ||||||||||||||
 2020 | ||||||||||||||
 2022 | ||||||||||||||
| 2024 | did not qualify | Qualifiers | 3 | 0 | 1 | 2 | 2 | 12 | ||||||
| 2026 | to be determined | Qualifiers | 0 | 0 | 0 | 0 | 0 | 0 | ||||||
| Total | 0/5 | Qualifiers | 3 | 0 | 1 | 2 | 2 | 12 | ||||||
| Summer Olympic Games Record | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Year | Result | Position | |||||||
 1992 | Did not enter | ||||||||
 1996 | |||||||||
 2000 | |||||||||
 2004 | |||||||||
 2008 | |||||||||
 2012 | |||||||||
 2016 | |||||||||
 2020 | |||||||||
 2024 | Did not qualify | ||||||||
| 2028 | To be determined | ||||||||
| Total | 0/9 | Qualifiers | 0 | 0 | 0 | 0 | 0 | 0 | |