Complete name is al-Zahrāwī, Abu 'l-Ḳāsim Ḵh̲alaf b. al-'Abbās
Albucasis is just one of the many ways of spelling the European version of the name of Al-Zahrawi, the famous Andalusian surgeon in Spain. He died in about 1013 (?). In European sources he also appears as Alsaharavius (with various spellings).
M.S. Spink & G.L. Lewis, Albucasis on Surgery and Instruments, Wellcome Institute of the History of Medicine (London 1973).