Ab is a Dutch and English (primarily Canadian) masculine given name. It usually is short form (hypocorism) of Albert and occasionally of Abraham or Abbott. The following people have a full name "Albert(us)", except where noted:

Ab Baars (born 1955), Dutch jazz saxophonist and clarinetist Ab van Bemmel (1912–1986), Dutch boxer Ab Box (1909–2000), Canadian football player Ab Campbell (1910–1973), Canadian (Toronto) politician Ab Conway (1914–2001), Canadian middle-distance runner Ab DeMarco (1916–1989), Canadian ice hockey player Ab DeMarco, Jr. (born 1949), Canadian ice hockey player Ab Doderer (1926–?), Dutch chauffeur and kidnapping victim Ab Douglas (born 1950), Dutch sports sailor Ab van Egmond (born 1938), Dutch road cyclist Ab Ekels (born 1950), Dutch sports sailor Ab Fafié (1941–2012), Dutch footballer Ab Geldermans (1935–2025), Dutch road bicycle racer and directeur sportif Ab Gowanlock (1900–1988), Canadian curler Ab Gritter (1949–2008), Dutch footballer Ab Hardy (1910–?), Canadian speed skater Ab Harrewijn (1954–2002), Dutch GreenLeft politician Ab Heijn (1927–2011), Dutch entrepreneur, chairman of Ahold Ab Hoffman (born 1947), Canadian track and field athlete Abby Hoffman Ab Jenkins (1883–1946), American race car driver and mayor of Salt Lake City (Abbott) Ab Justice, American golfer Ab Klink (born 1958), Dutch CDA politician (Abraham) Ab McDonald (1936–2018), Canadian ice hockey player (Alvin Brian) Ab Newsome (1920–1979), Canadian ice hockey player Ab Nicholas (1931–2016), American chief executive Ab Osterhaus (born 1948), Dutch virologist Ab Rector (1934–2005), Canadian (New Brunswick) politician Ab Renaud (1920–2012), Canadian ice hockey player Ab Rogers (1909–?), Canadian ice hockey player Ab Rosbag (born 1940), Dutch wrestler Ab Salm (1801–1876), Dutch painter Ab Saunders (1851–1883), American cowboy and gunman Ab Sluis (born 1937), Dutch cyclist Ab Tamboer (1950–2016), Dutch drummer Ab Tresling (1909–1980), Dutch field hockey player Ab Walker (1910–2001), Canadian (Ontario) politician Ab Welsh (1913–1971), Canadian ice hockey player Ab Wolders (born 1951), Dutch strongman and powerlifter Ab Wright (1905–1995), American baseball and football player

Bardic names may start with "Ab": Ab Iolo (1787–1847), Welsh poet and author Taliesin Williams Ab Ithel (1811–1862), Welsh antiquary and Anglican priest John Williams

See also AB (disambiguation)