FMU can refer to:
Universities Faisalabad Medical University, in Faisalabad, Punjab, Pakistan Fakir Mohan University, in Balasore, Odisha, India Florida Memorial University, in Miami, Florida, United States Florida Metropolitan University, now Everest University Francis Marion University, in Florence, South Carolina, United States Fukushima Medical University, in Japan
Other uses 16S rRNA (cytosine967-C5)-methyltransferase Federated Moulders' (Metals) Union of Australia, now defunct Financial Monitoring Unit, an agency of the government of Pakistan Florence Municipal Airport, in Oregon, United States Freight multiple unit Functional Mock-up Unit, a library representing a simulation model, also the file extension ".fmu" containing model data Muria language (ISO code fmu) "FMU" (song), by Brooke Candy featuring Rico Nasty from the album Sexorcism