'''Baby''' may refer to one of several individuals
* Ji Yeon Kwon, Jin's and Sun's daughter
* Walter "Walt" Lloyd, as an infant, when his mother Susan took him from his father Michael
* Aaron Littleton, Claire's baby
* Claire's substitute baby
* Alexandra Rousseau, who was a baby when she was abducted by the Others
* Miles Straume as a baby, raised by Pierre and Lara Chang on the Island
* Ethan Rom as a baby, born to Amy and Horace Goodspeed on the Island
* Megan Pace (child), Liam Pace's daughter and Charlie's niece
* Clementine Phillips, Sawyer and Cassidy's daughter
* Shawna's baby
* Connor, Tom Brennan's child
* Charlie Pace, who is often referred to as the nickname "baby brother" by his brother Liam
* The unborn baby that Ana Lucia lost
* The band Drive Shaft dressed as babies in the Butties Diapers commercial
* Any of the many dozens of real-life babies who have portrayed Aaron Littleton, a few of whom are listed in the background cast article
**Matthew David Viventi, one of these countless babies that have portrayed Aaron Littleton
* The baby doll that baited the net traps that caught Kate and Jack
* The baby born to the wife of the Chinese ambassador to Korea in the Jin-centric flashback in {{ep}}

==See also==

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