Japanese name meaning 'beloved child,' from 'ai' (love) + 'ko' (child).
Aiko (愛子 or あいこ) is a Japanese feminine name of layered, luminous meaning. The most common rendering combines "ai" (愛), meaning love or affection, with "ko" (子), meaning child — yielding "beloved child" or "child of love." Because Japanese allows multiple kanji combinations, the name can also be written to mean "little loved one," "child of indigo," or "child who shines," giving families room to encode personal sentiment into the characters they choose.
The name carries quiet royal resonance: Princess Aiko, born in 2001 to Emperor Naruhito and Empress Masako of Japan, brought global attention to the name and sparked a national conversation about imperial succession law. Long before her birth, Aiko appeared in Japanese literature and film as a symbol of gentle femininity and warmth. The name belongs to the classic "ko" generation of Japanese women's names — a suffix that peaked in popularity through much of the 20th century alongside Keiko, Yuko, and Naoko — giving Aiko both traditional grounding and enduring elegance.
Outside Japan, Aiko has traveled gracefully across cultures. Its short, open vowel sounds are easy to pronounce in virtually any language, and its transparent meaning — love, child — resonates universally. In the West it has been adopted by parents seeking a cross-cultural name with genuine depth, one that sounds musical without being invented. Aiko sits at the intersection of heritage and accessibility: rooted in one of the world's great literary and aesthetic traditions, yet completely at home in any nursery on earth.