S.b.y.f.l.

The South Belfast Youth Football League (SBYL) is an amateur football league for boys and girls aged 12-18 in the south of Belfast, Northern Ireland.

The league was founded in 1969 and currently has over 140 teams competing in 6 age groups: Under-12, Under-13, Under-14, Under-15, Under-16, and Under-18.

The SBYL is affiliated to the Irish Football Association (IFA) and its teams compete in the IFA Youth Cup.