The term Unfederated Malay States (Malay: Negeri-negeri Melayu Tidak Bersekutu) was the collective name given to five British protected states in the Malay peninsula in the first half of the twentieth century. These states were Johor, Kedah, Kelantan, Perlis, and Terengganu. In contrast with the four adjoining Federated Malay States of Selangor, Perak, Pahang, and Negri Sembilan, the five Unfederated Malay States lacked common institutions, and did not form a single state in international law; they were in fact standalone British protectorates.