2003–04 ULEB Cup Top 16

Main article: 2003–04 ULEB Cup

Eighth-final 1

	Home Team	Score	Away Team	Venue	Date
Game 1	Makedonikos	89 - 63	Caprabo Lleida	Kozani	February 10, 2004
Game 2	Caprabo Lleida	89 - 58	Makedonikos	Lleida	February 17, 2004

Eighth-final 2

	Home Team	Score	Away Team	Venue	Date
Game 1	Wallone Charleroi	56 - 74	Adecco Estudiantes	Charleroi	February 10, 2004
Game 2	Adecco Estudiantes	84 - 91	Wallone Charleroi	Madrid	February 17, 2004

Eighth-final 3

	Home Team	Score	Away Team	Venue	Date
Game 1	Real Madrid	87 - 68	Auna Gran Canaria	Madrid	February 10, 2004
Game 2	Auna Gran Canaria	63 - 61	Real Madrid	Las Palmas	February 17, 2004

Eighth-final 4

	Home Team	Score	Away Team	Venue	Date
Game 1	RheinEnergie Cologne	81 - 70	Metis Varese	Cologne	February 10, 2004
Game 2	Metis Varese	81 - 62	RheinEnergie Cologne	Varese	February 17, 2004

Eighth-final 5

	Home Team	Score	Away Team	Venue	Date
Game 1	BK Ventspils	68 - 79	BC Reflex	Ventspils	February 10, 2004
Game 2	BC Reflex	95 - 89	BK Ventspils	Belgrade	February 17, 2004

Eighth-final 6

	Home Team	Score	Away Team	Venue	Date
Game 1	DKV Joventut	78 - 62	Breil Milano	Badalona	February 10, 2004
Game 2	Breil Milano	81 - 69	DKV Joventut	Milano	February 17, 2004

Eighth-final 7

	Home Team	Score	Away Team	Venue	Date
Game 1	Hapoel Jerusalem	77 - 67	Prokom Trefl Sopot	Jerusalem	February 10, 2004
Game 2	Prokom Trefl Sopot	86 - 82	Hapoel Jerusalem	Sopot	February 17, 2004

Eighth-final 8

	Home Team	Score	Away Team	Venue	Date
Game 1	Lukoil Academic	77 - 80	Lietuvos Rytas	Sofia	February 10, 2004
Game 1	Lietuvos Rytas	105 - 78	Lukoil Academic	Vilnius	February 17, 2004