HH14

HH14, HH-14, HH 14, HH.14, may refer to:


 * Uncompromising Honor (novel), abbreviated "HH14", 14th main-line novel in the Honor Harrington novel series, part of the Honorverse fictional milieu created by David Weber


 * HH14, one of the Hamburger–Hamilton stages in chick development
 * WD repeat-containing protein 11 (HH14)