font-arial

Install command: 
brew install --cask font-arial

Name: Arial

https://sourceforge.net/projects/corefonts/files/the%20fonts/final/

Cask JSON API: /api/cask/font-arial.json

Cask code: font-arial.rb on GitHub

Current version: latest

Requirements: macOS >= 10.11

Analytics:

Installs (30 days)
font-arial 42
Installs (90 days)
font-arial 122
Installs (365 days)
font-arial 403