It is a commercially licensed, system-specific Japanese font, not an open-source web font.
A quick search for "Hiragino Kaku Gothic Pro Google Font" yields confusing results. Forums claim it exists. Designers swear by it. Yet, when you browse the official Google Fonts library (fonts.google.com), the name is nowhere to be found. hiragino kaku gothic pro google font
The confusion around "Hiragino Kaku Gothic Pro Google Font" stems from its frequent appearance in CSS font-family stacks. When developers want a Japanese-friendly sans-serif, they write: Designers swear by it
: A variation of the Zen family that leans into a slightly more classical, orthodox letterform while remaining a sharp sans-serif. Where to Find Hiragino Kaku Gothic Pro When developers want a Japanese-friendly sans-serif
is part of Google's "Noto" (No Tofu) project. It was designed specifically to harmonize with Latin scripts while supporting every character in the Japanese language.