The present paper aims to explore and document traditionally used medicinal plants for the treatment of various ailments of livestock in the district Raebareli of Uttar Pradesh. The study was carried out during June, 2008 to April, 2009 through interviews and discussions with the local inhabitants of the district. Total 40 plant species have been found to be used against 38 ailments of livestock in the form of 10 medicinal formulations. Voucher specimens of cited plant species were collected and identified as belonging to 39 genera and 28 families. The identified taxa are described by mentioning their scientific name, families, vernacular names, medicinal uses and their mode of administration. There is an urgent need to conserve properly the plant species of medicinal value growing in the study area and associated indigenous knowledge for sustainable use in veterinary healthcare.