UBM may refer to: UBM plc, a British business-to-business events organiser UBM Technology Group, a business-to-business multimedia company Ultrasound biomicroscopy, a type of ultrasound eye exam University of Bunda Mulia, one of the major Indonesian private universities ubm, the ISO 639 code for Mainstream Kenyah language Unsolicited bulk mail, an older technical term for email spam The Union of Bulgarian Mathematicians