A footprint is an impression left by a foot or shoe, for example an indentation in soft ground or snow, or a mark left by mud etc from the sole of the foot. Footprints can be useful in tracking the paths taken by people or animals in the recent past.

• In communications, a satellite's footprint is the area of the earth's surface from which its signals can be received.

• In computer science, the footprint of a piece of software is the portion of computing resources, typically RAM, CPU time and disc space, that it requires in order to operate.

• In product design, an item's footprint is the surface area it occupies. See also profile , form factor.

• Notions of a footprint as a sign of presence or a measure of size, influence or resource use have also been adopted in other fields. For example, in environmentalism a person's carbon footprint is a measure of the amount of natural resources they consume as part of their daily lives. See also ecological footprint.

• Footprint Books are a travel publisher based in Bath, UK, noted especially for their coverage of Latin America.

• Footprints (album) is an album by Holly Valance.