| KK Koper | |
| Location: | Koper, Slovenia |
| Arena: | Bonifika Hall |
| Colors: | Yellow, Blue |
| H Body: | FFFF00 |
| H Shorts: | FFFF00 |
| A Body: | 0000FF |
| A Shorts: | 0000FF |
Košarkarski klub Koper (English: Koper Basketball Club), commonly referred to as KK Koper or simply Koper, was a basketball club based in Koper, Slovenia. After the dissolution of the former Yugoslavia the club played in the Slovenian League. The team played their home games at Bonifika Hall.
Their greatest success was participation in the final series of the championship in 1992–93, where they were defeated by Olimpija 3–1.