From the English word star, used as a given name evoking celestial brightness.
Starr, in its double-r spelling, began life as an English occupational surname — sometimes given to a person associated with a sign or inn bearing a star emblem — and over time became a given name riding the perennial human fascination with the night sky. The star as symbol spans every human civilization: the Star of Bethlehem, the Star of David, the guiding stars of ancient navigation, the fixed points that gave order to a chaotic cosmos.
To name a child Starr is to invoke all of that accumulated wonder. The most culturally resonant bearer of the name is Ringo Starr, born Richard Starkey, who chose 'Starr' as a stage surname in part for the glamour of its celestial suggestion and in part as a nod to his fondness for playing in the style of country star Ringo (Johnny Ringo). The name surged as a given name in the latter half of the 20th century alongside the broader 'celestial names' trend — alongside Luna, Nova, and Aurora — but the double-r spelling gives it a harder, more grounded edge than the airy single-r Star. It has been used for both boys and girls, sitting comfortably in the unisex space, and carries an optimistic brightness that wears well across generations.