Hampton Lintorn-Catlin (né Catlin; born 1982)[1] is an American computer programmer, programming language inventor, gay rights advocate, and author, best known as the creator of the Sass and Haml markup languages.

Hampton was a Vice President of Engineering at Rent the Runway, and has previously held similar roles at Moovweb, Thriveworks, and at the Wikimedia Foundation.

He created a markup language called Haml which he intended to be a radically different design for inline page templating systems like eRuby in Ruby.

[14] They called for a boycott of Mozilla, pledging "We will continue our boycott until Brendan Eich is completely removed from any day to day activities at Mozilla...."[15] Eich had previously been the center of controversy surrounding his support for Proposition 8, a ballot initiative that banned marriage equality in California, which was re-ignited by his promotion to CEO.

"[19] In a follow-up blog post, Catlin explained meeting Eich to find middle ground and expressing dismay at the response, calling the outcome a "sad victory".