My Little Old Boy (), also called Mom's Diary: My Ugly Duckling, is a South Korean television entertainment program, distributed and syndicated by SBS every Sunday at 21:05 (KST), starting from August 26, 2016.
This reality program focuses on the mothers of South Korean celebrities. Unlike the generic reality program which focuses solely on the celebrity, My Little Old Boy features commentary from the celebrities' mothers as they watch the footage of their sons and or daughters' daily activities.