The title “Luther” can refer to several different works, but the most likely answer people mean by “who wrote Luther?” is:

  • The stage play “Luther” (1961) about Martin Luther was written by John Osborne.

However, there are other notable “Luther” works people sometimes mean:

  • The BBC crime drama series “Luther” (and its tie‑in novel Luther: The Calling) were created and written by Neil Cross.
  • The Luther Bible (a German translation of the Bible) was primarily translated by Martin Luther , with help from collaborators such as Philip Melanchthon and others.

If you tell me which “Luther” you had in mind (the play, the TV show, the Bible translation, or something else like a book or song), I can narrow it down to the single writer you’re looking for.