Let’s cut the fluff. Poznań’s crawling with gyms that promise six-packs and “beach body” nonsense, but if you’re actually looking to fight, to grind, to bleed and level up — we’ve got three names for you. These aren’t your average Insta-friendly fit-factories. These are fight clubs, where legends are made and egos are broken.

We’re breaking this down alphabetically, so don’t come at us if your gym’s not first — come at the bag instead.

21 Jiujitsu – Old Town’s Hidden Fight Fortress

Grochowe Łąki 5, (Old Town)
+48 508 037 037
slowek@op.pl
@21jiujitsu

You walk down an alley. You hear the slap of mats. You smell the sweat.
Welcome to 21 Jiujitsu — no frills, no fluff, just combat. This is Sebastian’s domain: a fourth-degree BJJ black belt who collects martial arts like trophies and trains killers, not influencers. We’re talking BJJ, Submission Wrestling, Muay Thai, Wrestling, and CrossFit so intense it could make a barbell cry.

If your idea of a workout is posing in front of mirrors, stay home. If you want to tap out the old you and choke in a new mindset, this is your dojo.

🔥 Best for: Serious BJJ heads, uniformed forces, and folks who think “rest day” is a myth.

Golden Tiger – The Jungle Where Weakness Dies

Wałbrzyska 1, 60-198 Poznań (Grunwald)
+48 690 419 573
@0goldentiger0

This ain’t a gym. It’s a proving ground.
Founded by K1 fighter Olaf Morkunas and co-run with Belarusian boxing tank Andrzej Połhowski, Golden Tiger is where you either evolve or get eaten. Classes include Boxing, K1, Muay Thai, and BJJ. There’s no space for pretenders here — just people who want to push themselves until their demons beg for mercy.

They’ve got girls throwing hands like warriors and kids learning real technique before they even hit puberty. Oh — and they’re building a damn outdoor boxing ring. That’s straight savagery.

🔥 Best for: Raw dogs, real fighters, and anyone who thinks sweating is therapy.

KKS Sporty Walki – The City-Backed Knockout Den

Osiedle Piastowskie 106A, Rataje
+48 721 785 903 / +48 570 485 255
@kks_sporty_walki

Sponsored by the city. Feared by the rest.
Tucked away near Rondo Starołęka, this gym wears its Lech Poznań badge like a battle scar. Head coach Radosław Laskowski? A certified legend who’s fought world champs and now trains the Polish National Kickboxing Team. His daughter Gabriela? A next-gen coach with knockout power and a killer smile. Even his son Olaf’s training for the Olympics.