Bobastro (Arabic Bubashtru)[1] was a castle of Roman origin, rebuilt as the headquarters of Umar ibn Hafsun during his rebellion against the Caliphate of Córdoba in the 9th century.

Its ruins lie in the Province of Málaga, Spain.

In 880 AD, Umar ibn Hafsun settled in the ruins of the old castle of Bobastro near Ardales, in which he incited the Muwallads and Mozarabs to join his cause against the unfair, heavy taxation and humiliating treatment they were receiving at the hands of Abd al-Rahman II and his successors.

[2][better source needed] In 888, Al-Mundhir of Córdoba was murdered at Bobastro by his brother Abdullah ibn Muhammad al-Umawi, who later succeeded him.

[citation needed] The rebels constructed a church within the castle which lasted until the end of their autonomy on January 19, 928.