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Jack Forster (born 1987), English rugby union player •
Jackie Forster (1926–1998), TV reporter and member of the Minorities Research Group •
Jean Forster (born 1943), Australian basketball player •
Jill Forster (born 1936), Australian actress •
Johann Reinhold Forster, (1729–1798), Polish-born naturalist of German and Scottish descent •
John Forster (disambiguation), several persons :* Sir
John Forster (soldier) (1520–1602), English military commander and Warden of the Middle Marches :*
John Forster (biographer) (1812–1876), English biographer and critic :*
John Forster (MP) (1817–1878), British politician, MP for Oxford :*
John Forster (Chief Justice) (1667–1720), Irish lawyer and politician :*
John Forster (colonial administrator) (died 1748), British administrator and President of Bengal :*
John Forster, 1st Baron Forster of Harraby (1888–1972), British barrister :*
John Forster (died 1558), English politician :*
John Forster (footballer) (born 1948), Australian footballer :*
John Forster (musician) (born 1948), American cabaret musician :*
John Forster (British Army officer) (1856–1938), British Army officer :*
John Cooper Forster (1823–1886), British surgeon :*
John (Don Juan) Forster (1814–1882), California landowner :*
John Wycliffe Lowes Forster (1850–1938), Canadian artist •
Jordon Forster (born 1993), Scottish footballer •
Josiah Forster (1782–1870), teacher and philanthropist ==K==