HRM

• Croatian Navy
• Halifax Regional Municipality
• Harrietsham railway station
• Hassi R'Mel Airport
• Heart Rhythm Meditation
• Heart rate monitor
• Her Royal Majesty
• Hermes Airlines
• High Resolution Melt
• High resolution manometry
• High-reactivity metakaolin
• Horned Miao language
• Horsham railway station, Victoria
• Human Race Machine
• Human resource management
• Rockwell scale
• Ḥ-R-M