Alexandra Elizabeth Kingston is an English actress. Active from the early 1980s, Kingston became noted for her television work in both Britain and the US in the 1990s, including her regular role as Dr. Elizabeth Corday in the NBC medical drama ER (1997–2004) and her title role in the ITV miniseries The Fortunes and Misfortunes of Moll Flanders (1996), which earned her a BAFTA nomination for Best Actress.

Elizabeth Corday, M.B.B.S., F.R.C.S. is a fictional character in the medical drama series ER, portrayed by British actress Alex Kingston. She first appeared at the beginning of the fourth season and became a lead character before departing towards the start of the eleventh season.