Hermann Franz Moritz Kopp (30 October 1817 – 20 February 1892), German chemist, was born at Hanau, where his father, Johann Heinrich Kopp, a physician, was professor of chemistry, physics and natural history at the local lyceum.

(born 1978) a German–New Zealand visual artist based in Scotland.

(born August 2, 1954) an American who was convicted in 2003 for the 1998 sniper-style murder of Barnett Slepian, an American OB-GYN physician from Amherst, New York who performed abortions.

Wendy Sue Kopp (born June 29, 1967) is the CEO and co-founder of Teach For All, a global network of independent nonprofit organizations working to expand educational opportunity in their own countries and the Founder of Teach For America, a national teaching corps.

Magdalena Cäcilia Kopp (2 April 1948 – 15 June 2015) was a German photographer and member of the Frankfurt Revolutionary Cells.

William Kopp (born April 17, 1962) is an American animator, writer and voice actor.

Quentin Lewis Kopp (born August 11, 1928) is an American attorney and politician.