Why is it so named?

Shibuya 109 takes its name from a simple but clever piece of numerical wordplay rooted in Japanese. The numbers 1, 0, and 9 can be read in Japanese as ichi, maru (or zero), and kyū respectively — but more relevantly, 10 can be read as tō and 9 as kyū, giving tō-kyū, which is the name of the Tokyu Corporation, the major Japanese railway and retail conglomerate that owns and operates the building. So the name 109 is essentially a numerical pun encoding the brand name of its parent company directly into the store’s identity.

The building opened in 1979 in the heart of Shibuya in Tokyo, and it became one of the most iconic fashion destinations in Japan, particularly associated with gyaru (gal) fashion culture and youth street style from the 1990s onward. The numerical branding is a neat example of a broader Japanese cultural fondness for goroawase, a kind of numeric wordplay in which numbers are assigned syllabic readings to spell out words or names — a practice that shows up everywhere from telephone numbers to product names to lucky or unlucky dates. In that sense, the name Shibuya 109 is itself a small linguistic curiosity worth adding to our discussion: just as phlegm hides its Greek ancestry in silent letters and Haiti reclaims an indigenous name, 109 hides a corporate identity inside what looks like a plain number, legible only if you know the phonetic key.