He is the son of Woody Allen, 82, and actress Mia Farrow, 73.
On Friday, Ronan Farrow introduced the world to his newborn niece Coretta Margaret LePine in an Instagram post.
'Meet my beautiful niece Coretta Margaret LePine, born today to my sis Quincy Farrow. Proud uncle and brother here,' the 30-year-old journalist captioned the image.
Proud uncle: Ronan Farrow introduced the world to his newborn niece Coretta Margaret LePine in an Instagram post on Friday
Bundle of joy: Coretta was born to Ronan's sister Quincy, age 24
Ronan is one of fourteen siblings.
His sister Quincy, 24, was adopted by Mia in 1994. She is currently studying to become a nurse.
His other siblings include: Matthew and Sascha Previn, 48, Fletcher Previn, 44, Daisy Previn, 43, Soon Yi-Previn, 47, Moses Farrow, 40, and Dylan Farrow, 32.
Three of his siblings have since passed: Thaddeus Farrow, age 27 in 2016, Lark Previn age 35 in 2008, and Tam Farrow age 19 in 2000.