…NIIOMTPLABOPARMBETZHELBETRABSBOMONIMONKONOTDTEKHSTROMONT. It is 56 words long and comes from Russia. It even made it to the Guiness Book of World Records and it refers to “The laboratory for shuttering, reinforcement, concrete and ferroconcrete operations for composite-monolithic and monolithic constructions of the Department of the Technology of Building-assembly operations of the Scientific Research Institute of the Organization for building mechanization and technical aid of the Academy of Building and Architecture of the USSR”.
The longest acronym, on the other hand, is ADCOMSUBORDCOMPHIBSPAC, which is a United States Navy term that stands for “Administrative Command, Amphibious Forces, Pacific Fleet Subordinate Command”.