Xeon is a Pentium microprocessor from Intel for use in "mid-range" enterprise servers and workstations. Xeon is replacing the Pentium Pro as Intel's main enterprise microchip. Xeon is designed for Internet and large transactional database servers as well as for engineering, graphics, and multimedia applications that require moving a lot of data around quickly. Xeon is the high end of the Pentium line (Celeron is the low end).

The Xeon is Intel's brand name for its server-class x86 microprocessors intended for multiple-processor machines. The brand has been maintained over several generations of x86 and x86-64 processors. Older models added the name Xeon to the end of the name of the corresponding standard range but the more recent models have just used the name Xeon on its own.