| Country: | Samoa Under-20s |
| Union: | Samoa Rugby Union |
| Coach: |  Semo Sititi |
| Leftarm1: | 264282 |
| Rightarm1: | 264282 |
| Body1: | 264282 |
| Socks1: | 264282 |
| Shorts1: | FFFFFF |
| Countryflagvar: | rugby |
| First: | Samoa 29–17 Scotland (6 June 2008) |
| Bigwin: | Samoa 48–11 United States  (24 May 2011) |
| Bigloss: | Wales 74–3 Samoa (12 June 2012) |
| World Cup Apps: | 5 (First in 2008) |
| Best: | 7th, 2008 & 2009 |
The Samoa under-20 rugby union team is Samoa's junior national team. They represent Samoa at the IRB Junior World Championship. After the 2010 Junior World Championship they were relegated to the Junior World Rugby Trophy for second tier nations. They were later promoted to the 2012 Junior World Championship after finishing as winners of the 2011 IRB Junior World Rugby Trophy. The team also competes at the Oceania U20 Championship as of 2015.
2008: Alatasi Tupou, Maselino Paulo, Roysiu Tolufale (2008), Misioka Timoteo, Afa Aiono, Semiperive Semeane (2009), Richard Muagututia, Levi Asifa'amatala (2010), Fa'atoina Autagavaia (2012), Vavae Tuilagi (2015)
2009: Falemiga Selesele (2010), Fa'atiga Lemalu, Viliamu Afatia (2012), Uini Atonio (2014, France)
2010: Steven Luatua (2013, New Zealand), Patrick Fa'apale, Tulolo Tulolo, Vaiofaga Simanu (2014)
2011: Robert Lilomaiava, Ropeti Lafo (2012), Vavao Afemai, Oneone Fa'afou (2014), Will Skelton (2014, Australia)
2012: Aniseko Sio (2014)