| Croatian Football Cup | |
| Year: | 2005–06 |
| Country: | Croatia |
| Num Teams: | 48 |
| Defending Champions: | Rijeka |
| Champions: | Rijeka (2nd title) |
| Runner-Up: | Varteks |
| Matches: | 54 |
| Goals: | 200 |
| Top Goal Scorer: | Leon Benko (9) |
| Prevseason: | 2004–05 |
| Nextseason: | 2006–07 |
The 2005–06 Croatian Football Cup was the fifteenth season of Croatia's football knockout competition.
| Round | Main date | Number of fixtures | width=100 | Clubs ! | New entries this round |
|---|---|---|---|---|---|
| 31 August 2005 | 16 | 48 → 32 | none | ||
| 21 September 2005 | 16 | 32 → 16 | 16 | ||
| 19 October 2005 | 8 | 16 → 8 | none | ||
| 9 and 15 November 2005 | 8 | 8 → 4 | none | ||
| 29 March and 5 April 2006 | 4 | 4 → 2 | none | ||
| 26 April and 3 May 2006 | 2 | 2 → 1 | none | ||
The preliminary round was held on 31 August 2005.
| width=40 | Tie no | width=150 | Home team | width=80 | Score | width=150 | Away team |
|---|---|---|---|---|---|---|---|
| 1 | Vukovar '91 | 5–1 | Papuk | ||||
| 2 | Hajduk Hercegovac | 1–3 | ZET | ||||
| 3 | Samobor | 1–0 | Konavljanin | ||||
| 4 | Moslavina | 3–1 | Istra Pula | ||||
| 5 | Graničar | 2–5 | Zagorec | ||||
| 6 | Slavonija Požega | 0–0 (4–3 p) | Koprivnica | ||||
| 7 | Podravina | 1–3 | Jedinstvo Omladinac | ||||
| 8 | Mladost Sigetec | 0–2 | Belišće | ||||
| 9 | Ogulin | 13–0 | Croatia Turanj | ||||
| 10 | Čakovec | 3–1 | Nehaj | ||||
| 11 | Vodice | 0–0 (5–4 p) | Oriolik | ||||
| 12 | HAŠK | 3–2 | Zadrugar Oprisavci | ||||
| 13 | Višnjevac | 0–4 | Međimurje | ||||
| 14 | Hrvace | 5–0 | Naprijed Hreljin | ||||
| 15 | Bjelovar | 2–3 | Segesta | ||||
| 16 | Vinogradar | 7–1 | Kalinovac |
Matches played on 21 September 2005.
| width=40 | Tie no | width=150 | Home team | width=80 | Score | width=150 | Away team |
|---|---|---|---|---|---|---|---|
| 1 | 0–8 | Dinamo Zagreb | |||||
| 2 | Hrvace | 0–3 | Hajduk Split | ||||
| 3 | Ogulin | 2–3 | Varteks | ||||
| 4 | Jedinstvo Omladinac | 0–2 | Rijeka | ||||
| 5 | Vodice | 0–5 | Osijek | ||||
| 6 | ZET | 1–0 | Pula Staro Češko | ||||
| 7 | Moslavina | 1–0 | NK Zagreb | ||||
| 8 | 1–3 | Kamen Ingrad | |||||
| 9 | Samobor | 1–4 | Cibalia | ||||
| 10 | Vinogradar | 2–1 | |||||
| 11 | Vukovar '91 | 0–3 | Slaven Belupo | ||||
| 12 | 0–4 | Inter Zaprešić | |||||
| 13 | Međimurje | 2–0 | Zadar | ||||
| 14 | 0–3 | Hrvatski Dragovoljac | |||||
| 15 | Segesta | 1–0 | Belišće | ||||
| 16 | Naftaš Ivanić | 2–0 | Šibenik | ||||
Matches played on 19 October 2005.
| width=40 | Tie no | width=150 | Home team | width=80 | Score | width=150 | Away team |
|---|---|---|---|---|---|---|---|
| 1 | Naftaš Ivanić | 3–2 | Dinamo Zagreb | ||||
| 2 | Segesta | 1–2 | Hajduk Split | ||||
| 3 | 0–2 | Varteks | |||||
| 4 | Rijeka | 3–1 | Međimurje | ||||
| 5 | Osijek | 2–0 | Inter Zaprešić | ||||
| 6 | Slaven Belupo | 5–0 | ZET | ||||
| 7 | Vinogradar | 3–2 | Moslavina | ||||
| 8 | 1–3 | Kamen Ingrad |
First legs were held on 9 November and second legs on 15 November 2005.|}
Rijeka won 2–1 on aggregate.----Varteks won 5–4 on aggregate.
See main article: 2006 Croatian Football Cup final.
Aggregate score was 5–5, Rijeka won on away goals rule.