Portia Sullivan Reiners (born March 8, 1990) is an American actress. She is most recognizable for her role as Britney Jennings on One Life to Live.
Reiners stepped in for Leven Rambin in 2006, playing the autistic Lily Montgomery on All My Children.
She was named after the character Portia from Shakespeare's The Merchant of Venice.
She appeared in the 2010 movie Twelve Thirty, alongside once OLTL guest Jonathan Groff (Spring Awakening).