Though this is an old thread which I found while searching, here's an improved answer from Apple's official site: How to install and remove fonts on your Mac
macOS supports TrueType (.ttf), Variable TrueType (.ttf), TrueType Collection (.ttc), OpenType (.otf), and OpenType Collection (.ttc) fonts. macOS Mojave adds support for OpenType-SVG fonts.
So as per my experience, you can copy required font file (of supported format) into Mac and install it. I copied a font from Windows machine and installed it in Mac as well as Linux. It works well.
Hope this will help.