The name Ellsworth is a boy's name of English origin meaning "nobleman's estate". Ellsworth and is often added to lists like Names That Mean Noble and discussed in our forums with posts like "100 Years (Dice Generation Game - Round 3)".
From the experts:
One of the many El- names for boys that boomed in the 1910s and 1920s, but has long been out of fashion. This surname/place name has an aristocratic flavor, and a creative namesake in the artist Ellsworth Kelly. Polar explorer Lincoln Ellsworth also gives it an adventurous connection.