North American boxart
Developer(s) id Software
Publisher(s) Activision (Windows)
Sega (Dreamcast)
Virgin Interactive (Playstation 2, Linux)
Activision Blizzard/Valve Corporation (Steam)
Designer(s) Graeme Devine
Series Quake series
Engine Quake III Arena
Version 1.32c (2006-05-08)
Platform(s) Dreamcast, IRIX, Macintosh, PC (Linux/Windows), PlayStation 2, source ports to additional platforms, Xbox Live Arcade
Release date NA December 2, 1999 (Windows), December 7, 1999 (Linux), 2000 (Dreamcast), 2008 (Xbox Live Arcade) 2007 (Steam)
Genre(s) First-person shooter
Mode(s) Single player, multiplayer
Rating(s) ELSPA: 15+
ESRB: M (Mature)
OFLC: MA15+
SELL: 16+
USK: 18+
VET/SFB: 15+
Media CD, Steam
System requirements 3D graphics accelerator with full OpenGL support, Pentium II 233 MHz or AMD 350 MHz K6-2 processor or Athlon processor, 64 MB RAM, 8 MB video card, 500 MB of free hard drive space, 100% DirectX 3.0 or higher compatible sound card, CD-ROM drive (600 kB/s sustained transfer rate)

Quake III Arena ili Quake 3, skraćeno kao Q3A ili Q3 je kompjutorska i video multiplayer (online) pucačina stvorena 2. prosinca 1999. godine. Igra je nastala od strane id Software i značajka je muzika komponirana od tvrtke Sonic Mayhem i Front Line Assembly.

Quake III Arena je treći nastavak u seriji i razlikuje se od prethodnih igara u Quake seriji po tome što uključuje normalan single-player elemente (offline), i dalje usredotočeno na multiplayer akciji.

Solističko iskustvo u Quake 3 je borilačka arena u kojoj se bori protiv kompjutora (tzv, bootova) sličnim stilom nalik Unreal Tournamentu.