Count of Osorno

Countship of Osorno
Creation date31 August 1445
Created byJohn II
PeeragePeerage of Spain
First holderGabriel Fernández Manrique, 1st Count of Osorno
Present holderCarlos Fitz-James-Stuart y de Solís, 22nd Count of Osorno

Count of Osorno is a Spanish hereditary peerage that was granted on 31 August 1445 by John II of Castile to Gabriel Fernández Manrique, 1st Duke of Galisteo. The title is accompanied by the dignity of Grandee of Spain.

On the death in 1675 of Ana Apolonia Manrique de Lara, 8th Countess, and in the absence of an heir, the title went to the House of Alba, which still holds it.

The name of the title refers to the municipality of Osorno la Mayor in the province of Palencia, Castile and León, Spain.