37th Federal Congress of the PSOE

The 37th Federal Congress of the Spanish Socialist Workers' Party was held in Madrid from 4 to 6 July 2008, to renovate the governing bodies of the Spanish Socialist Workers' Party (PSOE) and establish the party's main lines of action and strategy for the next leadership term. It was held shortly after the party's victory in the 2008 general election and saw José Luis Rodríguez Zapatero being re-elected unopposed for a third term as party secretary-general, with 98.5% of the delegate vote in the congress (941 votes) and 1.5% of blank ballots (14).

Candidates
{| class="wikitable" style="text-align:center;" ! colspan="2" width="125"| Candidate ! Age ! Notable positions ! Announced ! Eliminated ! Ref. ! colspan="7"|

Elected
! José Luis Rodríguez Zapatero
 * colspan="7"| Candidate elected as secretary-general.
 * colspan="7"| Candidate elected as secretary-general.
 * width="1px" style="background:#DB4E24"|
 * 47
 * Prime Minister of Spain (since 2004) Secretary-General of the PSOE (since 2000) Deputy in the Cortes Generales for León and Madrid (since 1986) Leader of the Opposition of Spain (2000–2004)
 * 26 April 2008
 * ✅ Elected
 * }
 * }