Jaak

{{Short description|Male given name}}

{{Infobox given name

| name = Jaak

| image =

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| pronunciation =

| gender = Male

| meaning =

| region = Estonia

| language = Estonian

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| nickname =

| related names = Jaagup, Jaakob, Jakob

| name day =

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| popularity =

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}}

Jaak is a version of the names Jacob and James in the Estonian language.{{cite web |title=Eesnime Jaak statistika|url=https://www.stat.ee/nimed/jaak |website=www.stat.ee |access-date=28 January 2022 |language=et}}

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 (1940–2023), 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