Jader may refer to:
People Given name Jader Barbalho (born 1944), Brazilian politician and businessman Jader Bignamini (born 1976), Italian conductor and clarinetist Jader Souza (born 1982), Brazilian swimmer Jader (footballer, born 1984), Jader da Silva Brazeiro, Brazilian football midfielder Jáder Obrian (born 1995), Colombian football attacking midfielder Jader Valencia (born 1999), Colombian football forward Jader (footballer, born 2003), Jader Barbosa da Silva Gentil, Brazilian football forward
Surname Khalid al-Jader (1922-1988), Iraqi artist, administrator and author Bernard Jąder (born 1951), Polish speedway rider Stig Jäder (born 1954), Swedish cross country skier
Places Jäder Church, Swedish church