Alexander Keiller
Alexander Keiller or Keillor may refer to:
- Alexander Keiller (archaeologist), Scottish archaeologist who worked at Avebury
- *Alexander Keiller Museum, Avebury
- Alexander Keiller (businessman), Scottish businessman who founded the Swedish company Göteborgs Mekaniska Verkstad
- Alexander Keiller (physician), Scottish physician and obstetrician
- Alex Keillor, Scottish footballer