Agrell is a Swedish surname. Notable people with the surname include:
- Alf Agrell (1884–1968): Swedish composer, conductor, and pianist.
- Wilhelm Agrell (1895-2001): Swedish writer and academic.
- Jan Agrell: A professor in mathematics.
The name is relatively uncommon. Its etymology is likely related to agriculture or a place name associated with fields ("ager" in Latin). Further research into Swedish genealogical records may provide more specific origins for particular family lines bearing the name.