Loíza barrio-pueblo is a barrio and the administrative center (seat) of Loíza, a municipality of Puerto Rico. Its population in 2010 was 3,875.

Pueblo is a term primarily used in Puerto Rico to refer to the municipal district (barrio) that serves as the administrative, historic and cultural center of a municipality. The concept of pueblo is often used locally as analogous to the concept of downtown in U.S. cities. Pueblos are officially called barrio-pueblo by the United States Census since 1990.