Ernst Koch
Ernst Koch is the name of the following people:
- Ernst Koch (architect) (1755–1825), German master builder in Vienna
- Ernst Koch (politician) (1774–1844), member of the state parliament, Grand Duchy of Hesse
- Ernst Koch (writer) (1808–1858), German poet and lawyer
- Ernst Koch (singer) (1820–1894), German chamber singer and music teacher
- Ernst Koch (engineer) (1875–1942), Swiss textile engineer and functionary
- Ernst Koch (librarian) (1899–1973), German librarian
- Ernst Koch (theologian) (* 1930), German theologian
- Ernst Koch-Vlierboom (1847–1907), Swiss chemist and entrepreneur
- Ernst-Eckhard Koch (1943–1988), physicist and university professor
- Ernst-Jürgen Koch (1923–2003), German circumnavigator