A real ʻokina – the turned-comma consonant, U+02BB, not an apostrophe – and the full kahakō set, Āā Ēē Īī Ōō Ūū. Another 1,035 families carry the kahakō but borrow their ʻokina from your operating system. This page checked the glyph tables of all 1,938, on July 29, 2026 – re-checks them live, in your browser – and takes the census again every week as the catalog grows.
The ʻokina is a consonant – the glottal stop – with its own letter. The kahakō stretches a vowel long. Substitute an apostrophe, or drop a macron, and you are writing different words. A typeface that lacks these glyphs doesn't fail loudly: your browser quietly borrows the missing letters from a system font, and the seams show in the middle of a word.
Same test, run right now on your operating system's own faces. Results depend on your OS and versions – your machine may disagree with someone else's.
Google Fonts is only one shelf. On Adobe Fonts, the Source families (Source Sans, Serif and Code – Adobe's own open designs, counted in the census above) carry the full Hawaiian set, and many Adobe Originals cover extended Latin – but Adobe doesn't publish per-glyph coverage, so test before you commit a brand to one.
The gold standard for language coverage is SIL – Gentium and Charis were built for exactly this and are free. Some foundries now sell Hawaiian-ready families outright, and Font Squirrel keeps a filterable list. For the deeper story of Hawaiian text on computers, Keola Donaghy's notes are the community reference.
Whatever the source: paste pāʻū into the type tester before you license. If the ʻokina looks like it came from a different font, it did.