1. Audimat Mono
This stylish monospaced font comes from SMeltery, a French font foundry by Jack Usine. Audimat Mono comes in 9 variations (Audimat Mono Light is shown below).
Released by Red Hat, a major Linux distribution vendor, this monospaced font is part of the Liberation font family (that also includes Libration Sans and Libration Serif).
4. CP Mono
Inspired by typefaces used in British license plates, CP Mono is evenly spaced horizontally and vertically (resulting in shorter ascenders and decenders).
Designed by Steve Matteson of Ascender Corporation, Cousine is a monospaced font specifically created with on-screen readability in mind.
6. DejaVu Mono
Part of the DejaVu font family (a group of fonts released into the public domain), DejaVu Mono is great for on-screen readability.
7. Droid Sans Mono
Droid Sans Mono, developed for the Android platform, is a monospaced variation of Droid Sans. The font is suitable in tabular settings.
Telegrama is a monospaced font with futuristic aesthetics. The font was designed by Japanese designer Yamoaka Yasuhiro.
This font by Raph Levien can work very well in designs, but it is most known for, and highly regarded, as a beautiful and readable "programmer’s font".
10. Luxi Mono
This functional monospaced font made by Kris Holmes and Charles Bigelow is part of the Luxi font family (which also includes Luxi Sans and Luxi Serif).