Nikos Boudouris was born on September 25, 1971, in Volos. He began his career with Olympiacos Volou and, in the summer of 1989 — specifically on July 30 — he signed his first contract with PAOK.
He played for nine consecutive years with PAOK, winning four titles with the club: the European Cup Winners’ Cup (1991), the Greek Championship (1992), the Korac Cup (1994), and the Greek Cup (1995). He also appeared in two more European finals (1992 and 1996), as well as in the Final Four of the EuroLeague (1993).
He left PAOK at the end of the 1997–98 season and continued his remarkable career with Panathinaikos (1998–2000). He also played for Olympiacos (2000–03), Makedonikos (2003–04), Maroussi (2004–06), and Olympiada Patras (2006–07), before finishing his career with Maroussi in the 2007–08 season.
He is the all-time leader in appearances in the history of the Greek A1 League (since the 1986–87 season), with 574 games (424 in the regular season and 150 in the playoffs).
He ranks second in all-time appearances in the A1 with PAOK, with 274 games, surpassed only by Vangelis Margaritis (296 league games with PAOK).
In 2000, at PAOK’s then newly built indoor arena, he won the EuroLeague and became the first player in the history of Greek basketball to win all three European club titles that existed at the time (EuroLeague, Cup Winners’ Cup, and Korac Cup).
He earned 102 caps with the Greek Men’s National Team, finishing 4th twice in the FIBA World Championship (1994 and 1998), and also participated in two EuroBasket tournaments (1997 and 1999).
After the end of his playing career, he remained actively involved in basketball development, working successfully with youth teams in Vrilissia and Olympiacos Volou, while also serving as Technical Director at PAOK and Team Manager at Olympiacos. From December 2025, he became General Manager of PAOK. 
HONORS
Greek Junior Champion with PAOK (1990)
European Cup Winners’ Cup Champion with PAOK (1991)
Greek League Champion with PAOK (1992) and Panathinaikos (1999, 2000)
Korac Cup Winner with PAOK (1994)
Greek Cup Winner with PAOK (1995) and Olympiacos (2002)
EuroLeague Champion with Panathinaikos (2000)
Silver Medal – Mediterranean Games (1991)
Silver Medal – European U-22 Championship (1992)