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, Addison, and others. People with the first name of Ad include:
Ad van der Avoird (born 1943), Dutch chemistAd Bax (born 1956), Dutch-American biophysicistAd de Boer (born 1946), Dutch politicianAd Brennan (1887–1962), American baseball pitcherAd Carter (1895–1957), American cartoonist (Ad stands for "August Daniel")Ad Donker (1933–2002), Dutch-South African publisherAd Gumbert (1868–1925), American baseball pitcherAd Kaland (1922–1995), Dutch politicianAd van Kempen (born 1944), Dutch actorAd Kolnaar (born 1942), Dutch economistAd Konings (born 1956), Dutch ichthyologistAd Koppejan (born 1962), Dutch politicianAd Lagendijk (born 1947), Dutch physicistAd van Liempt (born 1949), Dutch journalistAd Liska (1906–1998), American baseball pitcherAd van Luyn (born 1935), Dutch Roman Catholic bishopAd Melkert (born 1956), Dutch politicianAd Moolhuijzen (born 1943), Dutch water polo playerAd Neeleman (born 1964), Dutch-British linguistAd Reinhardt (1913–1967), American abstract painterAd Rutschman (born 1931), American football and baseball coachAd Santel (1887–1966), American professional wrestlerAd Simonis (born 1931), Dutch Roman Catholic cardinalAd Sluijter (born 1981), Dutch guitaristAd Snijders (1929–2010), Dutch painterAd van der Steur (1893–1953), Dutch architectAd Swigler (1895–1975), American baseball pitcherAd Tak (born 1953), Dutch bicycle racerAd van Tiggelen (born 1958), Dutch banker and fantasy writerAd Vandenberg (born 1954), Dutch rock guitaristAd Wenke (1898–1961), American football player and justiceAd Wijnands (born 1959), Dutch bicycle racerAd Wolgast (1888–1955), American boxerAd Yale (1870–1948), American baseball player