Monmouth Executive Airport (IATA: BLM, ICAO: KBLM, FAA LID: BLM) is a privately owned, public use airport in Monmouth County, New Jersey. It is in Wall Township six miles west of Belmar (which its codes are derived from), east of Farmingdale. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation reliever airport. Prior to 2003, it was known as Allaire Airport. The airport was sold on December 3, 2013 to a consortium known as Wall Aviation. The new owners intend to evict current renters and upgrade the facility to serve corporate clients.

In an analysis by the Regional Plan Association in 2011, Monmouth Executive scored highly as a potential airport for airline flights to expand capacity and relieve aviation congestion in the New York area.