This paper presents diagnostic criteria for Menière’s disease (MD) developed by the Classification Committee of the Bárány Society, the Japan Society for Equilibrium Research, the European Academy of Otology and Neurotology (EAONO), the Equilibrium Committee of the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS), and the Korean Balance Society. The criteria classify MD into two categories: definite MD and probable MD. Definite MD is diagnosed based on clinical criteria, including episodic vertigo lasting 20 minutes to 12 hours, low- to medium-frequency sensorineural hearing loss (SNHL) in one ear, and fluctuating aural symptoms (hearing, tinnitus, or fullness) in the affected ear. Probable MD is a broader concept defined by episodic vestibular symptoms (vertigo or dizziness) associated with fluctuating aural symptoms occurring between 20 minutes and 24 hours. The criteria aim to improve the precision of diagnosing MD, especially in cases with variable clinical presentations, and to facilitate multicenter studies and genomic research. The diagnostic criteria were developed through a structured process involving expert committees and are based on the best available scientific evidence. The criteria also consider differential diagnoses such as vestibular migraine, transient ischemic attack, and autoimmune inner ear disease. The study highlights the importance of distinguishing MD from other conditions with similar symptoms, as well as the need for further research to improve diagnostic accuracy and treatment options.This paper presents diagnostic criteria for Menière’s disease (MD) developed by the Classification Committee of the Bárány Society, the Japan Society for Equilibrium Research, the European Academy of Otology and Neurotology (EAONO), the Equilibrium Committee of the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS), and the Korean Balance Society. The criteria classify MD into two categories: definite MD and probable MD. Definite MD is diagnosed based on clinical criteria, including episodic vertigo lasting 20 minutes to 12 hours, low- to medium-frequency sensorineural hearing loss (SNHL) in one ear, and fluctuating aural symptoms (hearing, tinnitus, or fullness) in the affected ear. Probable MD is a broader concept defined by episodic vestibular symptoms (vertigo or dizziness) associated with fluctuating aural symptoms occurring between 20 minutes and 24 hours. The criteria aim to improve the precision of diagnosing MD, especially in cases with variable clinical presentations, and to facilitate multicenter studies and genomic research. The diagnostic criteria were developed through a structured process involving expert committees and are based on the best available scientific evidence. The criteria also consider differential diagnoses such as vestibular migraine, transient ischemic attack, and autoimmune inner ear disease. The study highlights the importance of distinguishing MD from other conditions with similar symptoms, as well as the need for further research to improve diagnostic accuracy and treatment options.