Keyi (Malayalam: കേയി, pronounced [keːyee] meaning "Ship Owner" in Persian language), (Keyi Muslims) are one of the several denominations among Muslims of Kerala, India. The Keyis are known for their immense wealth and land properties acquired through trade with the English East India Company. The Keyi family has its roots in Thalassery, Kannur district. Keyis only marry from another Keyi family and are noted for their matrilinear system of inheritance.