Joint Base Langley–Eustis (IATA: LFI/FAF[a], ICAO: KLFI/KFAF[b], FAA LID: LFI/FAF[c]) is a United States military facility located adjacent to Hampton and Newport News, Virginia.

The legislation ordered the consolidation of the two facilities which were nearby, but separate military installations, into a single Joint Base, one of 12 formed in the United States as a result of the law.

Fort Eustis, a historic Army installation and the second half of Joint Base Langley–Eustis, is an area to train service members in transportation, aviation maintenance, logistics and deployment doctrine with its diverse landscape and easy access to the James River.

The installation is the training ground for the majority of the transportation MOSs (with the exception of the 88M truck driver specialty located at Fort Leonard Wood, Mo.)

It is the home of the Transportation Regiment, and received the transfer of some activities that were conducted at Fort Monroe, which was decommissioned on September 15, 2011 under BRAC.