Meaning and history
From Japanese 愛 (ai) meaning “love, affection” and 子 (ko) meaning “child,” as well as other possible character combinations.
20062006: 37 births, rank #3,992
2007: 28 births, rank #5,097
2008: 39 births, rank #4,006
2009: 50 births, rank #3,298
2010: 37 births, rank #4,023
20112011: 28 births, rank #4,915
2012: 28 births, rank #4,957
2013: 24 births, rank #5,486
2014: 34 births, rank #4,269
2015: 24 births, rank #5,458
20162016: 25 births, rank #5,284
2017: 23 births, rank #5,517
2018: 31 births, rank #4,458
2019: 47 births, rank #3,337
2020: 56 births, rank #2,890
20212021: 53 births, rank #3,069
2022: 59 births, rank #2,856
2023: 77 births, rank #2,352
2024: 76 births, rank #2,389
20252025: 63 births, rank #2,719
In 2025, 63 babies were recorded with the name Aiko, ranking #2,719 among girls.