Alvis may refer to:

• Alvíss, a dwarf in Norse mythology
• Alvis Cars a British manufacturer of luxury cars and military vehicles
• Alvis plc (later Alvis Vickers), the above company after its demerger from British Leyland. Became the UK's largest armoured vehicle manufacturer.
• Alvis, the deity/messiah worshipped by a fictional religion on the Adult Swim show Sealab 2021