Atheist Symbol - Atomic A Logo for Secular Humanism & Science #1951654 (License: Personal Use)

This iconic logo merges the letter 'A' (for atheism) with an atomic model, symbolizing the centrality of science, evidence, and naturalism in atheist philosophy. The red gradient on the 'A' adds visual emphasis and distinguishes it from similar secular symbols like the Happy Human. It’s widely adopted by organizations such as American Atheists and used in advocacy, education, and community branding.

Used on websites, social media, merchandise, and event materials by secular, humanist, and freethought groups; targets users seeking identity, educational content, or community alignment with non-religious worldviews.