Admir Kalender
Admir Kalender is a Croatian tennis player.
Kalender has a career-high ATP singles ranking of world No. 966 achieved on 28 August 2023 and a doubles ranking of No. 383 achieved on 24 November 2025.
Kalender made his ATP main draw debut at the 2021 Croatia Open Umag after receiving a wildcard into the doubles main draw.
ITF World Tennis Tour finals
Singles: 1 (1 runner-up)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | |||||||||||||||
| Loss | 0–1 | M15 Celje, Slovenia | WTT | Clay |  Doubles: 12 (6 titles, 6 runner-ups)
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