| Karlo Lusavec | |
| Birth Date: | 30 October 2003 |
| Birth Place: | Varaždin, Croatia |
| Height: | 1.75 m |
| Currentclub: | NK Varaždin |
| Clubnumber: | 14 |
| Position: | Midfielder |
| Youthyears1: | –2017 |
| Youthclubs1: | NK Novi Marof |
| Youthyears2: | 2017–2021 |
| Youthclubs2: | NK Varaždin |
| Years1: | 2020– |
| Caps1: | 34 |
| Goals1: | 0 |
| Years2: | 2023 |
| Clubs2: | → Dugopolje (loan) |
| Caps2: | 14 |
| Goals2: | 0 |
| Club-Update: | 12 December 2023 |
Karlo Lusavec (born 30 October 2003) is a Croatian footballer currently playing as a midfielder for NK Varaždin.