Samu Castillejo (full name: Samuel "Samu" Castillejo Azuaga) is a Spanish professional footballer born on March 18, 1995, in Motril, Granada, Spain. He is primarily a right winger but can play across the front line.

• Nationality: Spain
• Position: Winger / Forward (predominantly right wing)
• Date of birth: 18 March 1995
• Height: ~1.78 m (5 ft 10 in)
• Notable clubs:
  • Málaga CF (youth and senior debut)
  • Villarreal CF (2014–2018)
  • AC Milan (2018–2021)
  • Sevilla FC (loan 2020–2021)
  • Fiorentina (joined 2021; subsequent moves include loans/returns depending on season)
• AC Milan tenure (2018–2021):
  • Joined AC Milan in July 2018 from Villarreal.
  • Wore the number 22 shirt during part of his Milan spell.
  • Known at Milan for pace, dribbling, and work-rate on the right wing; scored several goals and provided assists across Serie A and domestic cup competitions.
  • Loaned to Sevilla in the 2020–2021 season before moving on from Milan.
• Playing style: Quick, direct winger who likes to take on defenders, cut inside to shoot, and contribute defensively with pressing. Good at running channels and creating space for teammates.
• International career: Represented Spain at youth levels (including U21). Has not been a regular for the senior Spain national team.

Note: Club affiliations and appearances may have changed since this summary; for the latest statistics and current club status, consult a live sports database or the club's official site.