The etymology of the surname Morrison is either Anglo-Norman, commonly found throughout Scotland, Ireland and England, or from an Anglicization of Irish Ó Muirgheasáin. == History == Morrison in England is traditionally believed to be a patronymic of Maurice/Morris, introduced into England following the Norman invasion in 1066. In Scotland there is strong evidence that other surnames of Anglo Norman origin such as Moir, Muir and More, were equally influential as potential multiple origin poin…