These are things named after Erich Hecke, a German mathematician.
Hecke algebra Hecke algebra of a locally compact group Hecke algebra of a finite group Hecke algebra of a pair Hecke polynomial Iwahori–Hecke algebra Affine Hecke algebra Double affine Hecke algebra Hecke algebra (disambiguation) Hecke character Hecke congruence subgroup Hecke correspondence Hecke eigenform Hecke group Hecke L-function (disambiguation) Hecke operator Hecke ring