The alipin refers to the lowest social class among the various cultures of the Philippines before the arrival of the Spanish in the 16th and 17th centuries. In the Visayan languages, the equivalent social classes were known as the oripun, uripon, or ulipon.

The timawa were the feudal warrior class of the ancient Visayan societies of the Philippines. They were regarded as higher than the uripon but below the tumao in the Visayan social hierarchy. They were roughly similar to the Tagalog maharlika caste.