Michael Halliday (1925–2018) was a British linguist.
Michael Halliday may also refer to:
Michael Frederick Halliday (1822–1869), English amateur artist John Creasey (1908–1973), English crime and science fiction writer, who also used the pseudonym Michael Halliday Michael Halliday (cricketer) (born 1948), Irish cricketer Michael Halliday (footballer, born 1979) (born 1979), Northern Irish footballer Michael Halliday (soccer, born 2003) (born 2003), American soccer player