| Croatian Football Cup | |
| Year: | 1997–98 |
| Country: | Croatia |
| Num Teams: | 32 |
| Defending Champions: | Croatia Zagreb |
| Winners: | Croatia Zagreb (4th title) |
| Second: | Varteks |
| Matches: | 38 |
| Goals: | 114 |
| Scoring Leader: | Vladimir Petrović (7) |
| Prev Season: | 1996–97 |
| Next Season: | 1998–99 |
The 1997–98 Croatian Football Cup was the seventh edition of Croatia's football knockout competition. Croatia Zagreb were the defending champions, and they won their third successive title.
| Round | Main date | Number of fixtures | width=100 | Clubs ! | New entries this round |
|---|---|---|---|---|---|
| 5 and 6 August 1997 | 16 | 32 → 16 | None | ||
| 9 and 24 September 1997 | 8 | 16 → 8 | None | ||
| First legs 14 and 26 October 1997, Second legs 22 October 1997 | 8 | 8 → 4 | None | ||
| First legs 1 April 1998, Second legs 15 April 1998 | 4 | 4 → 2 | None | ||
| First leg 6 May, Second leg 14 May 1998 | 2 | 2 → 1 | None | ||
| Tie no | Home team | Score | Away team | |
|---|---|---|---|---|
| 1 | Slavonac | 1–5 | Croatia Zagreb | |
| 2 | Samobor | 0–1 | NK Zagreb | |
| 3 | Olimpija Osijek | 0–3 | Rijeka | |
| 4 | Jadran Poreč | 2–1 | Segesta | |
| 5 | Orijent | 2–1 | Cibalia | |
| 6 | RNK Split | 2–1 | Marsonia | |
| 7 | Varaždin | 1–2 | Varteks | |
| 8 | Slaven Belupo | 2–0 | Belišće | |
| 9 | PIK Vrbovec | 1–4 | Zadarkomerc | |
| 10 | Špansko | 3–1 | Bjelovar | |
| 11 | Budućnost Hodošan | 2–1 | Šibenik | |
| 12 | Dilj | 1–0 | Inker Zaprešić | |
| 13 | Badel Sesvete | 1–0 | Dubrovnik | |
| 14 | Slavonija Požega | 1–2 | Croatia Đakovo | |
| 15 | Posedarje | 1–3 | Hajduk Split | |
| 16 | Mladost 127 | 2–2 (aet) (5–4 p) | Osijek |
| Tie no | Home team | Score | Away team | |
|---|---|---|---|---|
| 1 | Budućnost Hodošan | 1–2 | NK Zagreb | |
| 2 | Dilj | 2–1 | RNK Split | |
| 3 | Croatia Đakovo | 0–0 (aet) (2–4 p) | Varteks | |
| 4 | Badel Sesvete | 2–1 | Zadarkomerc | |
| 5 | Rijeka | 0–2 | Orijent | |
| 6 | Jadran Poreč | 0–1 | Mladost 127 | |
| 7 | Croatia Zagreb | 11–0 | Špansko | |
| 8 | Hajduk Split | 3–1 | Slaven Belupo |
|}
Croatia Zagreb won 7–0 on aggregate.----
Varteks won 3–1 on aggregate.
Croatia Zagreb won 3–1 on aggregate.