Erra
Erra can refer to:

Erra (god), a Babylonian god
Erra, Estonia, a settlement in Sonda Parish, Ida-Viru County, Estonia
Erra, the purported home planet of the pleiadean aliens described by ufologist Billy Meier
Pizzo Erra, a mountain in Switzerland
Giancarlo Erra, founder of the Italian rock band Nosound
Erra-Pater, an astrologer
Erra (band), an American metalcore band
Erra (album), their fifth studio album
Erra (Kakatiya dynasty), a 10th century Indian rulerERRA may refer to:

Enterprise and Regulatory Reform Act 2013
Energy Regulators Regional Association
Earthquake Reconstruction and Rehabilitation Authority