FR, Fr or fr may stand for:

• Franc
• France (ISO country code, FR)
• Francium (Fr) symbol for the chemical element
• French language (ISO 639 alpha-2, fr)
• Fribourg, canton of Switzerland
• FR layout--front engine, rear drive
• The FR Fireball fighter aircraft of the US Navy
• Free Republic
• Full Rate Speech coding standard used for example in GSM
• the IATA code for Ryanair
• Father
• Forgotten Realms - A fictional universe encountered in novels and games