Farrell can refer to several things, depending on the context. Here are some possible definitions:
A surname: Farrell is a common Irish surname that means "hero" or "champion."
Farrell function: A mathematical function that was first proposed by J.H. Farrell in 1957, which is used to estimate the economic production of a firm or industry.
Farrell Award: An award given to outstanding individuals or organizations in the field of chemical engineering.
Mike Farrell: An American actor, producer, and director, best known for his role as Captain B.J. Hunnicutt on the TV series MAS*H.
Colin Farrell: An Irish actor, best known for his roles in films such as In Bruges, Phone Booth, and The Lobster.
Terry Farrell: An American architect and urban planner, known for her work on projects such as the redevelopment of Times Square in New York City.
Without further context, it is difficult to determine which definition of Farrell is most relevant.
