What does LRH stand for?

La Rochelle - France - Airport symbol (OAG)

Luteinizing-Hormone Releasing Hormone - Also, GnRF, GnRH, LH-RF, LH-RH, LH-RH/FSH-RH, LRF - Endocrinology

Meridian Yachts Inc., Huntington Beach, CA - Manufacturer code for watercraft hull identification number (USCG)