What is the name of the English writing system used before the Latin alphabet?

The English writing system used before the Latin alphabet was the Anglo-Saxon runic system, commonly called Anglo-Saxon runes or futhorc.

Futhorc was the runic alphabet used to write Old English and, earlier, forms of Anglo-Frisian. Its name comes from the first six runes in its traditional sequence: ᚠ ᚢ ᚦ ᚩ ᚱ ᚳ. It developed from the older 24-character Elder Futhark and expanded to accommodate sounds found in the languages of Anglo-Saxon England and Frisia.

Runic writing began in England around the 5th century. After Christian missionaries reintroduced the Latin alphabet in the late 6th and 7th centuries, the two systems coexisted for a time. Latin script eventually became dominant because it supported church texts, administration, and manuscript culture.

Futhorc was not identical to Scandinavian Younger Futhark, and Ogham was a separate script associated mainly with Celtic languages. Surviving evidence includes inscriptions on objects such as the Franks Casket and St Cuthbert’s coffin.