Jaak is a version of the names Jacob and James in the Estonian language. People named Jaak include: Jaak Aab (born 1960), Estonian politician Jaak Aaviksoo (born 1954), Estonian politician and physicists Jaak Allik (born 1946), Estonian politician and theatre director Jaak De Boever (born 1937), Belgian racing cyclist Jaak Boon (born 1948), Belgian television writer, director and producer Jaak Gabriëls (born 1943), Belgian politician Jaak Huimerind (born 1957), Estonian architect Jaak-Heinrich Jagor (born 1990), Estonian hurdler Jaak Herodes (born 1944), Estonian politician Jaak Joala (1950–2014), Estonian singer Jaak Jõerüüt (born 1947), Estonian writer and politician Jaak Juske (born 1976), Estonian politician Jaak Kangilaski (1939–2022), Estonian art historian and educator Jaak Kärner (1892–1937), Estonian sport shooter Jaak Kilmi (born 1973), Estonian film director and producer Jaak Leimann (born 1941), Estonian economist and politician Jaak-Nicolaas Lemmens (1823–1881), Belgian organist and composer Jaak Lipso (born 1940), Estonian basketball player Jaak Madison (born 1991), Estonian politician Jaak Mae (born 1972), Estonian cross-country skier Jaak Panksepp (1943–2017), Estonian-American psychologist, psychobiologist and neuroscientist Jaak Peetre (1935–2019), Estonian-Swedish mathematician Jaak Põldma (born 1988), Estonian tennis player Jaak Prints (born 1981), Estonian actor Jaak Salumets (born 1949), Estonian basketball player and coach Jaak Tamleht (1942-1986), Estonian actor Jaak Urmet, better known as Wimberg (born 1979), Estonian poet and writer Jaak Uudmäe (born 1954), Estonian triple jumper Jaak Valge (born 1955), Estonian historian and politician Jaak van Velthoven (born 1951), Belgian motocross rider Jaak van Wijck (1870–1946), Dutch painter See also Kristjan Jaak Peterson (1801–1822), Estonian poet References Estonian masculine given names