HLP

HLP may refer to:


 * Halim Perdanakusuma International Airport, in East Jakarta, Indonesia, IATA code
 * Haryana Lokhit Party, a political party; see Haryana Legislative Assembly
 * Hepatocyte growth factor-like protein
 * Houston Lighting & Power, HL&P, former Texas, US utility
 * Huntington Library Press, an American publisher
 * .hlp, a file extension for several help file types, including WinHelp