Ad is a first name. It is common in the Netherlands, where it is almost always short for Adrianus or Adriaan. In America it can be short for Adolph, Adam, Addison, and others. People with the first name of Ad include:

Ad Achkar (born 1988), Lebanese photographer and artist Ad van der Avoird (born 1943), Dutch chemist Ad Bax (born 1956), Dutch-American biophysicist Ad de Boer (born 1946), Dutch politician Ad Brennan (1887–1962), American baseball pitcher Ad Carter (1895–1957), American cartoonist (Ad stands for "August Daniel") Ad Dekkers (1938–1974), Dutch artist Ad Dekkers (1953–2002), Dutch cyclist Ad Donker (1933–2002), Dutch-South African publisher Ad Geelhoed (1942–2007), Dutch professor, civil service worker, and Advocate-General Ad Gumbert (1868–1925), American baseball pitcher Ad Hermes (1929–2002), Dutch politician Ad Kaland (1922–1995), Dutch politician Ad Abi Karam (born 1937), Lebanese-Australian Catholic bishop Ad van Kempen (1944–2026), Dutch actor Ad Kolnaar (born 1942), Dutch economist Ad Konings (born 1956), Dutch ichthyologist Ad Koppejan (born 1962), Dutch politician Ad Lagendijk (born 1947), Dutch physicist Ad Lankford (1882–1967), American baseball pitcher Ad van Liempt (born 1949), Dutch journalist Ad Liska (1906–1998), American baseball pitcher Ad van Luyn (born 1935), Dutch Roman Catholic bishop Ad Melkert (born 1956), Dutch politician Ad Minoliti (born 1980), Argentinian visual artist Ad Moolhuijzen (born 1943), Dutch water polo player Ad Neeleman (born 1964), Dutch-British linguist Ad Reinhardt (1913–1967), American abstract painter Ad Rutschman (born 1931), American football and baseball coach Ad Santel (1887–1966), American professional wrestler Ad Simonis (1931–2020), Dutch Roman Catholic cardinal Ad Sluijter (born 1981), Dutch guitarist Ad Snijders (1929–2010), Dutch painter Ad van der Steur (1893–1953), Dutch architect Ad Stouthamer (1931–2023), Dutch microbiologist Ad Strengholt (1901-1973), Dutch publisher Ad Swigler (1895–1975), American baseball pitcher Ad Tak (born 1953), Dutch bicycle racer Ad van Tiggelen (born 1958), Dutch banker and fantasy writer Ad Vandenberg (born 1954), Dutch rock guitarist Ad Visser (born 1947), Dutch VJ, presenter, writer, and music artist Ad Wammes (born 1953), Dutch composer Ad Wenke (1898–1961), American football player and justice Ad Wijnands (born 1959), Dutch bicycle racer Ad Wolgast (1888–1955), American boxer Ad Wouters (born 1944), Dutch-Belgian sculptor Ad Yale (1870–1948), American baseball player Ad Zonderland (1940–2007), Dutch football manager and administrator

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