Lyceum-Northwestern University (L-NU) is a medical college located in Dagupan, Philippines, founded by Francisco Quimson Duque and Florencia Tiongson Duque in 1969.

Lyceum-Northwestern started as a single-room nursing school at the Dagupan City Polyclinic Hospital and was then called the Dagupan City School of Nursing.

In 1974, Dr. Duque acquired the Northwestern Educational Institution.

In the latter part of the year, Lyceum-Northwestern spearheaded a consortium of local tertiary schools and founded the Northern Philippines Institute of Medicine.

On November 19, 2001, Lyceum-Northwestern was granted its university status.