The term
Unfederated Malay States 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.