St. John The Baptist R.C. Church is a Roman Catholic parish church located in San Juan, within the San Juan–Laventille region of Trinidad and Tobago. Functioning under the Metropolitan Archdiocese of Port of Spain, it serves as a key center of worship and community life for Roman Catholics in the eastern corridor of Port of Spain.

The church offers Roman Rite (Latin Rite) liturgies and is an integral part of the local parish network that provides pastoral services, sacraments, and community outreach. It often participates in diocesan initiatives and feast-day celebrations, strengthening the Catholic presence in a densely populated, multicultural district.

Situated on Queen Street near the San Juan Police Station and Presbytery, the church building is a recognizable landmark characterized by its modest colonial-era design and community-focused layout. Its location in the East–West Corridor makes it easily accessible to parishioners from nearby areas such as Petit Bourg and El Socorro.

Beyond Mass and sacraments, the parish organizes charitable drives, youth programs, and cultural observances tied to feast days such as the Nativity of St. John the Baptist. It also functions as a meeting point for civic and interfaith dialogue, reflecting the area’s diverse social fabric.

Parish operations fall under the guidance of clergy appointed by the Archdiocese, with weekday office hours maintained for administrative and pastoral support. Regular services typically include Saturday evening and Sunday morning Masses, with weekday worship and community activities scheduled throughout the year.