LB1 most commonly refers to the complete skull of Homo floresiensis found in the Liang Bua cave in Indonesia.
LB1 and LB-1 may also refer to:
LB-1, a binary star system LB, a disability classification in lawn bowls LB1, a type of V6 automotive engine, see LB1, the cDNA of the human CKAP2 protein-coding gene (39783) 1997 LB1, a fast-rotating minor planet, see List of fast rotators (minor planets) Hatfield Little Bird #1, an ultralight aircraft Huff-Daland LB-1, an American biplane light bomber of the 1920s Staib LB-1, a homebuilt aircraft design