Long-distance trails (or long-distance tracks, paths, footpaths or greenways) are the longer recreational trails mainly through rural areas, used for non-motorized recreational travelling (walking, backpacking, cycling or horse riding).

Any route named as a "trail" (or "way", in the UK) will probably be marked, or identified on a map, but it will usually only be described as "long-distance" if it takes the average user more than one day to travel from end to end. Typically, a "long-distance" trail, way or path will be at least 50 km (31 mi) long, but some in Britain are several hundred miles long, and many in the US are much longer.

In some countries, official "trails" will have the surface specially prepared to make the going easier.

In the UK long-distance paths are simply existing rights of way (over private land) "joined together" (perhaps with specially negotiated linking sections) to make a named route. Generally the surface is not especially prepared (which can come as a surprise to walkers from abroad, who find their distance-covering estimates need to be rethought to take rough ground into account) except in special places such as converted rail tracks, or some "busy" hilly areas where stone slabs are laid to prevent erosion.