The NU Bulldogs, Lady Bulldogs, Bullpups and Lady Bullpups are the collegiate men's and women's, and high school men's and women's, respectively, varsity teams of National University (NU) in the University Athletic Association of the Philippines.

The Bulldog symbolizes dignity and integrity, kindness and compassion, perseverance and resilience, transformation and innovation, and its ability to adapt and be dynamic.

In the early years of the UAAP, the NU Bulldogs were a competitive team in the league, winning a title in 1954.

They were led by Jeff Napa who tied the record of UE's Allan Caidic for the most number of three-points made in a single UAAP game.

After season 64 (2001–02), the NU Bulldogs returned to their mediocre performance despite having outstanding players such as Rey Mendoza, Edwin Asoro, both members of the Mythical Five in separate seasons and Jonathan Fernandez, who found some success playing for the PBL's Harbour Centre squad and the SEABA RP team.

In the last quarter of year 2008, the family of Henry Sy of SM Prime Holdings acquired majority ownership of the National University.

After 60 long years of title drought, the National U Bulldogs clinched the title after winning against FEU, 75–59, in a Do-or-Die Wednesday, October 15, 2014, at the Smart Araneta Coliseum with a Record-Breaking Crowd of 25, 138 (biggest crowd ever to watch a basketball game at the venue, considering the game was held on a Wednesday).

[2] After an incredible run to the title, the NU Bulldogs ended their trademark as "Perennial Doormats", "Bottom-Dwellers" and "Underdogs" and they became the Top Dogs of the league.

Ghicka Bernabe, a former member of FEU Cheering Squad, is the current head coach of the group.