| Club | West Ham United FC |
| Position | Left-Back |
| Squad number | 18 |
| Age | 24 (born Sat, 22 Jun 2002) |
| Nationality | Senegal |
| Height | 183 cm |
Data: SportMonks · updated 4 Sept 2026
Adama Boiro is a Spanish left-back playing for West Ham United on loan from Athletic Club during the 2026/27 Championship season.
The 24-year-old wears the No.18 shirt and joined West Ham in September 2026 as Nuno Espirito Santo strengthened his options on the left side of defence.
Boiro was born in Dakar, Senegal, before moving to Spain as a child and developing through the Osasuna academy.
Adama Boiro at West Ham
West Ham signed Boiro from Athletic Club on a season-long loan in September 2026.
The agreement also gives the Hammers an option to make the transfer permanent.
Boiro arrived after West Ham identified left-back as one of the remaining positions requiring reinforcement following the summer transfer window.
His arrival added direct competition for Ollie Scarles on the left side of Nuno’s defence.
Read West Ham covered the full story when West Ham completed the Adama Boiro deal after a dramatic Deadline Day pursuit.
Is Adama Boiro on loan at West Ham?
Yes.
Boiro joined West Ham on loan from Athletic Club for the entire 2026/27 season.
West Ham also hold an option to make the move permanent at the end of the loan.
Athletic confirmed that they received a fixed fee as part of the temporary transfer.
Boiro remains contracted to Athletic Club until 30 June 2029.
How old is Adama Boiro?
Boiro was born on 22 June 2002 in Dakar, Senegal.
He is 24 years old.
Boiro moved to Pamplona in Spain with his family at the age of four and later obtained Spanish nationality.
How tall is Adama Boiro?
Boiro is 183cm tall.
His combination of height, athleticism and mobility allows him to operate as a conventional left-back or provide width higher up the pitch.
What position does Adama Boiro play?
Boiro is primarily a left-back.
He can play on the left side of a back four or operate as a wing-back when required.
That versatility gives Nuno another natural option on the flank alongside Ollie Scarles.
West Ham’s current first-team squad contains several players capable of covering defensive positions, but Boiro is one of the squad’s specialist left-sided defenders.
Adama Boiro West Ham debut
Boiro made his West Ham debut during the 3-0 Championship victory over Derby County at London Stadium.
He replaced Ollie Scarles during the second half as West Ham completed their first league clean sheet of the season.
The appearance came just days after Boiro completed his move from Athletic Club.
Adama Boiro career before West Ham
Boiro began playing football in Spain after moving to Pamplona as a child.
He represented local clubs San Jorge and Ardoi before joining Osasuna’s academy.
Boiro progressed to Osasuna B and made his senior debut in September 2021.
Across two-and-a-half seasons with Osasuna B, he made 67 league appearances, scoring once and providing five assists.
Athletic Club signed Boiro in January 2024.
He initially joined Bilbao Athletic before progressing into Athletic’s first-team squad.
Boiro made his La Liga debut in a 1-0 victory over Valencia in August 2024.
He went on to make 45 senior appearances for Athletic Club, featuring across La Liga, the Europa League and Champions League.
His European experience included Champions League starts against Arsenal, Newcastle United, Slavia Prague, Paris Saint-Germain, Atalanta and Sporting Lisbon.
Adama Boiro international status
Boiro was born in Senegal but holds Spanish nationality after growing up in Spain.
His football development took place in the Spanish system following his family’s move to Pamplona.
Adama Boiro West Ham stats
Boiro’s latest West Ham appearances, minutes, goals and assists are updated in the statistics table above throughout the 2026/27 season.
Supporters can view every first-team player in our West Ham squad guide.
Our West Ham fixtures and results page also tracks every upcoming Championship and cup match.
