Gait is the pattern of movement of the limbs of animals, including humans, during locomotion over a solid substrate. Most animals use a variety of gaits, selecting gait based on speed, terrain, the need to , and energetic efficiency. Different animal species may use different gaits due to differences in anatomy that prevent use of certain gaits, or simply due to evolved innate preferences as a result of habitat differences. While various gaits are given specific names, the complexity of biological systems and interacting with the environment make these distinctions 'fuzzy' at best. Gaits are typically classified according to footfall patterns, but recent studies often prefer definitions based on mechanics. The term typically does not refer to limb-based propulsion through fluid mediums such as water or air, but rather to propulsion across a solid substrate by generating reactive forces against it (which can apply to walking while underwater as well as on land).

GAIT (an acronym for the GSM-ANSI-136 Interoperability Team) is a wireless standard developed in 1999 that allows cross-operation of mobile telephone technologies. Phones compliant with the GAIT standard can operate on either contemporary GSM networks, or the legacy IS-136 TDMA and AMPS networks found extensively throughout North America.