MAH may refer to:

• Mah, the Avestan language word for both the moon and for the Zoroastrian divinity
• Malév Hungarian Airlines (ICAO code), the flag carrier airline of Hungary
• Menorca Airport (IATA airport code), the airport serving the Balearic island of Minorca in the Mediterranean Sea
• Milli Emniyet Hizmeti, former Turkish government intelligence agency
• milliampere-hour, often abbreviated as mAh or mA·h, a unit of electric charge
• Monocyclic aromatic hydrocarbon, a type of chemical compound
• My American Heart, an American band

1. REDIRECT

or is the Avestan language word for both the moon and for the Zoroastrian divinity that presides over and is the hypostasis of the moon.

An ampere-hour or amp-hour (symbol Ah, AHr, A·h, A h) is a unit of electric charge, with sub-units milliampere-hour (mAh) and milliampere second (mAs). One ampere-hour is equal to 3600 coulombs (ampere-seconds), the electric charge transferred by a steady current of one ampere for one hour. The ampere-hour is frequently used in measurements of  electrochemical systems such as electroplating and  electrical batteries. The commonly seen milliampere-hour (mAh or mA·h) is one-thousandth of an ampere-hour (3.6 coulombs).