Senator McKay may refer to:
David McKay (politician) (1844–1917), Utah State Senate Douglas McKay (1893–1959), Oregon State Senate Gordon W. McKay (1910–1990), Oregon State Senate James Iver McKay (1793–1853), North Carolina State Senate John M. McKay (born 1948), Florida State Senate Mike McKay (politician) (born 1969), Maryland State Senate Thomas E. McKay (1875–1958), Utah State Senate
See also Buddy MacKay (born 1933), Florida State Senate