Theatre Royal, aka Lilli Palmer Theatre is an Anglo-American half-hour television anthology series hosted by Lilli Palmer. It was the first ITV play series; and was first transmitted on 25 September 1955, with the televised Dickens episode, Bardell v Pickwick. Thirty-four episodes aired in the UK on ATV London in 1955–56. Fourteen episodes aired in the US from 1955–56.

Notable guest stars included Maggie Smith, Wendy Hiller, Stephen Boyd, Marius Goring, Michael Gough and Wilfrid Hyde-White.