You may be looking for someone or something called Müller or Mueller.

Muller may refer to:

People

• Bill Muller, journalist (1965-2007)
• Bobby Muller, Vietnam veteran
• Charles Muller, translator
• Franck Muller, watchmaker
• Franz Muller, German tailor, first to commit murder on a British train
• Heiner Müller, a postmodern German playwright and director
• Hendrik Pieter Nicolaas Muller (1859-1941), Dutch businessman, world traveler, publicist, diplomat and philanthropist.
• Herbert J. Muller, (1905-1980), American historian, academic, government official and author.
• Hermann Joseph Muller (1890-1967), U.S. geneticist (Muller's ratchet) and educator
• Hero Muller, Dutch Sesame Street performer
• Jean M. Muller, French structural engineer
• Jim Muller, Co-founder of Voice of the Faithful
• Johann or Johannes or Hans Müller may refer to the following people:
  • Johannes Müller von Königsberg alias Regiomontanus (1436-1476), German mathematician, astronomer
  • Johannes Peter Müller (1801-1858), German physiologist, comparative anatomist, and ichthyologist
  • Johannes Müller Argoviensis (1828-1896), Swiss botanist
  • Johannes von Müller (1752-1809), Swiss historian
  • Hans Müller (chess player) (1896-1971), Austrian chess player
  • Hansi Müller (born 1957), German football player
• Judy Muller, American journalist
• Kirk Muller, Canadian hockey player
• Mancow Muller, American radio and television personality
• Nicole Muller, Canadian classical pianist
• Pieter Muller, South African rugby player
• Richard A. Muller, physicist, University of California, Berkeley
• Robert Muller, United Nations employee
• Romeo Muller, American actor and writer
• Scott Muller, Australian cricketer
• Sophie Muller, music video director
• Steven Muller, former President of Johns Hopkins University
• Yvan Muller, French auto racing driver
• Luiz Antônio da Costa, nicknamed Muller, Brazilian football (soccer) player
• Gerd Muller, former West German football player
• Jeb Muller, American Novelist

Other

• Box-Muller transform (mathematics)
• Fox Film Corp. v. Muller (U.S. Supreme Court, 1935)
• Muller v. Oregon (U.S. Supreme Court, 1908)
• Muller's ratchet (genetics)
• Reed-Muller code (mathematics)
• Muller, a leading European dairy product manufacturer based in Germany.
• Muller Martini, a manufacturer of printing equipment.

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