The 1999 CGU National League season was a 45 over English county cricket competition; colloquially known as the Sunday League, it featured many mid-week floodlit matches.
Each team played all the others in their division both home and away.
[3][4] Lancashire Lightning won the League for a record fifth time, retaining the title they had won the previous season.
Warwickshire Bears, Hampshire Hawks and Essex Eagles were relegated from Division One, while Sussex Sharks, Somerset Sabres and Northamptonshire Steelbacks were promoted from Division Two.
This article related to an English domestic cricket competition is a stub.