Martyr's Memorial B-Division League (Nepali: शहीद स्मारक बी डिभिजन लीग) is the second tier of the association football league of Nepal football league system after the Martyr's Memorial A-Division League.
It was established in 2003[citation needed] and is run by the All Nepal Football Association.
It is currently being held at the ANFA Complex.
The league is formatted as a single round-robin tournament with the top two team getting promoted to the Martyr's Memorial A-Division League and the bottom two teams relegated to the Martyr's Memorial C-Division League.
This structure has not remained constant however as the league structure is changed every year by the All Nepal Football Association.