McConaughy is a surname. Notable people with the surname include:
David McConaughy (1823–1902), attorney, cemetery president, and civic leader in Gettysburg, Pennsylvania, USA David McConaughy (college president) (1775–1852), the fourth president of Washington College from 1831 to 1852 James L. McConaughy (1887–1948), American politician and a former Governor of Connecticut, USA Julia E. McConaughy (1834–1885), American litterateur and author Walter P. McConaughy (1908–2000), career American diplomat
See also Lake McConaughy, reservoir, 9 miles north of Ogallala, Nebraska, United States Matthew McConaughey (born 1969), American actor, director, producer and writer McConnaughay McConnaughey