The Battle of Alhandic is fought between Ramiro II of León and Abd-ar-Rahman III at Zamora in the context of the Spanish Reconquista. The battle resulted in a victory for the Emirate of Córdoba.

The Battle of Alhandic, also known as Battle of Zamora's moat, occurred on 5 August 939 in the city of Zamora, Spain. The battle occurred when the troops of the Caliph of Córdoba, Abd al-Rahman III assaulted the walls of Zamora. The defending troops were those loyal to Ramiro II, King of León. The fighting was so bloody that the tide of the battle did not turn until the moat surrounding the city walls was entirely filled with corpses. The troops of Abd al-Rahman won the day and were able to seize the city of Zamora.

Ramiro II, son of Ordoño II and Elvira Menendez, was a King of León from 931 until his death. Initially titular king only of a lesser part of the kingdom, he gained the crown of León after supplanting his brother Alfonso IV and cousin Alfonso Fróilaz in 931. The scant Anales castellanos primeros are a primary source for his reign.

ʿAbd al-Raḥmān ibn Muḥammad ibn ʿAbd Allāh ibn Muḥammad ibn ʿAbd al-Raḥmān ibn al-Ḥakam al-Rabdī ibn Hishām ibn ʿAbd al-Raḥmān al-Dākhil, or simply ʿAbd al-Raḥmān III, was the Umayyad Emir of Córdoba from 912 to 929, at which point he founded the Caliphate of Córdoba, serving as its first caliph until his death. Abd al-Rahman won the laqab (sobriquet) al-Nāṣir li-Dīn Allāh in his early 20s when he supported the Maghrawa Berbers in North Africa against Fatimid expansion and later claimed the title of Caliph for himself. His half-century reign was known for its religious tolerance.

Zamora is a city and municipality of Spain located in the autonomous community of Castile and León. It is the capital of the province of Zamora. The city straddles the Duero river. With its 24 characteristic Romanesque style churches of the 12th and 13th centuries it has been called a "museum of Romanesque art". Zamora is the city with the most Romanesque churches in all of Europe. The most important celebration in Zamora is Holy Week.