The 1997–98 LEN Champions League was the 35th edition of LEN's premier competition for men's water polo clubs. It ran from 1997 to 6 June 1998, and it was contested by 16 teams. The Final Four (semifinals, final, and third place game) took place on June 5 and June 6 in Zagreb.

Preliminary round

Key to colors in group tablesGroup winners and runners-up advanced to Final four

Blue Group

Red Group

Final Four (Zagreb)

Final standings

Team Posillipo Pescara HAVK Mladost Spartak Volgograd

Milan Tadić, Marcello De Georgio, Tamás Kásás, Giuseppe Porzio, Francesco Postiglione, Gergely Kiss, Fabio Galasso, Francesco Porzio, Luca Giustolisi, Paolo Zizza, Dušan Popović, Gianfranco Salvati, Fulvio Di Martire, Carlo Silipo, Fabio Bencivenga, Antracite LignanoHead coachPaolo De Crescenzo

See also 1997–98 LEN Cup Winners' Cup 1997–98 LEN Cup