2003–04 Croatian Football Cup

The 2003–04 Croatian Football Cup was the 13th edition of Croatia's premier association football knockout competition. Hajduk Split were the defending champions, and the cup was eventually won by Dinamo Zagreb on away goals rule after the aggregate score in the final tie was 1–1 against Varteks. This was the 7th Croatian cup title for Dinamo and Varteks' fourth final without a win.

Quarter-finals

 * }

Semi-finals
Dinamo Zagreb won 4–3 on aggregate.

Varteks won 8–2 on aggregate.

Second leg
Dinamo Zagreb won on away goals rule.