Oneda Maryon Castillo (born April 13, 1952) is a Global Instructor for the Ladies Professional Golfers Association (LPGA). She joined the LPGA in 1997. She is only the third African American woman to achieve Class A status as a LPGA Teaching and Club Professional (T&CP), doing so in 2003. As of 2016 she is still one of just a few African American women golfers to become a LPGA Teaching Professionals.