Below are listed political parties registered at the Spanish Ministry of the Interior in 1976-2002. Note that:

• The Ministry does not appear to remove registrations if parties are dissolved or become dormant and a large number of the groups mentioned no longer exist today.
• In several cases the groups listed were electoral alliances formed to contest a specific election.
• In several cases, the registered parties are regional affiliates or branches of a nationwide party.
• Some of the organizations listed are not political parties per se. For example, a handful of youth wings of political parties are listed.
• Parties are listed in the order by which they were registered.

• For political parties registered in 1976–1984, see List of registered political parties in Spain (1976–1984).
• For political parties registered in 1985–1993, see List of registered political parties in Spain (1985–1993)