The name Dorrit is a girl's name . Dorrit and is often added to lists like Classic Baby Names with a Twist and discussed in our forums with posts like "drop your least favourite w randomly generated names - girls with middles".
From the experts:
The "Little Dorrit" title character of Charles Dickens' novel was actually named Amy; Dorrit was her last name. The Dorit spelling is a short form of Dorotea in Danish and Dorrit has been used as a first name, but its origins are as a surname derived from Dorothea or Durward.