LH

Look up lh in Wiktionary, the free dictionary.

LH, Lh, or lh may stand for:

Laurel and Hardy
Leasehold (Tenure)
Left-handed or left hand
Letterhead, the heading at the top of a sheet of letter paper
lh, a digraph for many languages
LH (DOS command), a DOS command that loads a program into the upper memory area
A type of Single-mode optical fiber
LH platform, a type of Chrysler car made from 1993 through 2004: New Yorker, 300M, Concorde, LHS, Intrepid and Vision
The Literary and Historical Society, the debating union of University College Dublin
"Little Hide", 1998 debut single by Snow Patrol
Linkhero
Lovehammers
Late Helladic period in the history of ancient Greece during the Bronze Age

Science

Luteinizing hormone, a hormone synthesized and secreted by gonadotropes in the anterior lobe of the pituitary gland
Logarithmic Hierarchy a complexity class used in computer theory.

Lufthansa (IATA airline designator), the largest European airline
LabCorp (ticker symbol, full name Laboratory Corporation of America Holdings), clinical laboratory company
Lernout & Hauspie, a former Belgium-based speech and language technology company
Korea Land and Housing Corporation, the South Korea's state-owned Housing company
Lifehacker, a mega-blog owned by Gawker Media

Love Hina, a popular manga (and anime) series by author Ken Akamatsu
The Lurking Horror
Lovehammers Chicago based Rock Band. Notice the "L" Is capitalized and the h is lower case, this is because Lovehammers is 1 word (www.lovehammers.com).
Lethbridge Hurricanes A WHL hockey team out of Lethbridge, Alberta