The Roman Catholic Church in Portugal is composed only of a Latin hierarchy, joint in the national episcopal conference of Portugal (Conferência Episcopal Portuguesa ), consisting of

• three ecclesiastical provinces, headed by Metropolitan Archbishops (one of which (Lisbon) holds the superior rank of Patriarch), with a total of 17 suffragan dioceses.
• an exempt military ordinariate.

There are no Eastern Catholic jurisdictions.

There is also an Apostolic Nunciature to Portugal as papal diplomatic representation (embassy-level), in the national capital Lisbon.

• List of Catholic dioceses (structured view)

• GCatholic.org - data for all sections.
• Catholic-Hierarchy entry.