The Smallest Baby Boy In The World, According To Known Records, Was Born, In 2018, By C-Section In Tokyo, Japan. The Baby Is Said To Weigh 268g, But Has Since Recovered To A Weight Of 3.2kg. However, The Smallest Baby In The World Was A Girl, Weighing 252g And Was Born, In 2015, In Germany.
'Tiniest baby boy' ever sent home leaves Tokyo hospital – BBC News
Doctors said the baby, born weighing just 268g, is the smallest newborn ever to have been successfully treated and sent home.