Avenir is a geometric sans-serif typeface designed by Adrian Frutiger in 1987 and released in 1988 by Linotype GmbH.

The word avenir is French for "future". As the name suggests, the family takes inspiration from the geometric style of sans-serif typeface developed in the 1920s that took the circle as a basis, such as Erbar and Futura. Frutiger intended Avenir to be a more organic interpretation of the geometric style, more even in colour and suitable for extended text, with details recalling more traditional typefaces such as the two-storey 'a' and 't' with a curl at the bottom, and letters such as the 'o' that are not exact, perfect circles but optically corrected.

Frutiger described Avenir as his finest work: "The quality of the draftsmanship – rather than the intellectual idea behind it – is my masterpiece. (...) It was the hardest typeface I have worked on in my life. Working on it, I always had human nature in mind. And what's crucial is that I developed the typeface alone, in peace and quiet – no drafting assistants, no-one was there. My personality is stamped upon it. I'm proud that I was able to create Avenir."