The name Farrell is a boy's name of Irish origin meaning "courageous". Farrell and is often added to lists like Unique Baby Names: Unusual and Rare and discussed in our forums with posts like "Generation CAF #8 (Irish family)".
From the experts:
If you're looking for a pleasing namesake that's more modern than Darrell/Darryl, this would make an excellent choice. Farrell is an Anglicized form of the Irish Fergal, and was well used as a first name into the nineteenth century, before it faded to mostly surname use.