| Guam U-20 | |
| Nickname: | Youth Matao[1] |
| Association: | Guam Football Association |
| Sub-Confederation: | EAFF (East Asia) |
| Confederation: | AFC (Asia) |
| Coach: | Dominic Gadia |
| Captain: | Kai Pahl |
| Home Stadium: | Guam National Football Stadium |
| Fifa Trigramme: | GUM |
| Pattern La1: | _guam16h |
| Pattern B1: | _guam_16h |
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| Shorts1: | 000049 |
| Socks1: | 000049 |
| Pattern La2: | _guam16a |
| Pattern B2: | _guam16a |
| Pattern Ra2: | _guam16a |
| Pattern Sh2: | _ |
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| Shorts2: | ffffff |
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| First Game: | 14–0 (Shizuoka, Japan; 11 May 1994) |
| Largest Win: | 7–0 (Hagåtña, Guam; 8 August 2013) |
| American: | true |
The Guam national under-20 football team is the national association football youth team for the United States territory of Guam and is controlled by the Guam Football Association. They are affiliated with the Asian Football Confederation's East Asian Football Federation region.
The following players were called up for the 2023 AFC U-20 Asian Cup qualification, held in September 2022.[2]