ABMT may refer to:

• Anti-Ballistic Missile Treaty
• Autologous bone marrow transplant, a part of High-dose chemotherapy and bone marrow transplant
• American Board of Medical Toxicology, a precursor to the American College of Medical Toxicology

• Bishop of St Andrews
• Bishop of St Andrews, Dunkeld and Dunblane
• Bishop of St. Andrews (Episcopalian)
• Bishop of St Asaph
• Bishop of St. Asaph
• Bishop of St Asaph, Wales (Anglican)
• Bishop of St Davids
• Bishop of St Edmundsbury & Ipswich
• Bishop of St. Gallen
• Bishop of St-Lizier
• Bishop of St-Malo
• Bishop of St-Omer
• Bishop of St-Papoul
• Bishop of St-Paul-Trois-Châteaux
• Bishop of St. Pol de Léon
• Bishop of Strasbourg
• Bishop of Strasburg
• Bishop of Strassburg
• Bishop of Strathearn
• Bishop of St. Thomas
• Bishop of Surat Thani
• Bishop of Synnada
• Bishop of Séez
• Bishop of Taejon (Catholic)
• Bishop of Tampere