All Octicons
three-bars
Octicon sizes navigation
React
import {ThreeBarsIcon} from '@primer/octicons-react' <ThreeBarsIcon size={16} />
Rails
<%= render(Primer::Beta::Octicon.new(:"three-bars", size: :small)) %>
Jekyll
{% octicon three-bars height:16 %}
Figma
This icon is called three-bars
in Primer's Octicons library.