The Mac Pro is a workstation computer manufactured by Apple Inc. The machines are based on an Intel 5400 chipset (with PCI Express architecture) and Xeon microprocessors, but are similar to the Power Mac G5 they replaced in terms of outward appearance and expansion capabilities. They are currently the most powerful desktop computers in the Macintosh lineup.

The Mac Pro was formally announced on August 7, 2006 at WWDC. Along with the Mac Pro, a new Xeon-based Xserve was also announced, completing Apple's transition from the PowerPC to x86 architecture. On January 8, 2008 Apple unveiled the first 3.2 GHz, 8-core Intel Xeon (Harpertown 45nm) -based Mac Pro.