The Pakistan Football Federation League B Division is a Pakistani professional league for men's football departments and clubs which are in the Pakistan football league system, and is the country's second-tier competition. Contested by 18 departments and clubs, it operates on a system of promotion and relegation with the top-tier Pakistan Premier League.

Football is among the most popular team sports in Pakistan, together with long time number one cricket and field hockey. Pakistan's current top domestic football league is the Pakistan Premier League, formed with sixteen clubs to promote football in the country. The first national league began in 2003 and was immediately recognised by the AFC as the official national football league. Football in general is run by the Pakistan Football Federation.