The Welsh Rugby Union Division Five South East (also called the SWALEC Division Five South East for sponsorship reasons) is a rugby union league in Wales first implemented for the 1995/96 season.
During the course of a season (which lasts from September to May) each club plays the others twice, once at their home ground and once at that of their opponents for a total of 20 games for each club, with a total of 110 games in each season.
The team who is declared champion at the end of the season is eligible for promotion to the WRU Division Four South.
The two lowest placed teams are relegated into the WRU Division Six Central.
[1] The initial three year sponsorship was extended at the end of the 2010/11 season, making SWALEC the league sponsors until 2015.