One of my female classmates stands just above 150 cm tall, and she's older than me. I'm among the tallest guys in the class, so it looks a bit funny when we walk next to each other. Her height is often joked about, but she takes it well. :U

Buuuuut if age doesn't matter, my 4 year old grandcousin goes up to around the middle of my thighs. His younger brother is still a toddler, and thus is even smaller.