Mark Sullivan may refer to:
- Mark J. Sullivan, Director of the United States Secret Service, 2006-
- Mark Sullivan (cricketer) (born 1964), South African cricketer
- Mark T. Sullivan, American author of mystery and suspense novels
- Mark Sullivan (jurist) (1911–2001), justice on the New Jersey Supreme Court, 1973–1981
- Mark Sullivan, founder Snowboard Magazine
- Mark Sullivan, keyboardist for several California bands including Toiling Midgets
- Mark Sullivan, chief scientist for Eagle Eye Technologies, Inc, later Skybitz
Famous quotes containing the words mark and/or sullivan:
“Writing or printing is like shooting with a rifle; you may hit your reader’s mind, or miss it;Mbut talking is like playing at a mark with the pipe of an engine; if it is within reach, and you have time enough, you can’t help hitting it.”
—Oliver Wendell Holmes, Sr. (1809–1894)
“Form ever follows function.”
—Louis Henry Sullivan (1856–1924)