Molly E. Holzschlag (born January 25, 1963) is a US author, lecturer and advocate for the Open Web. She has written or co-authored over 35 books on web design and open standards, including The Zen of CSS Design: Visual Enlightenment for the Web (co-authored with Dave Shea) and Transcending CSS: The Fine Art of Web Design with Andy Clarke.
She has been named one of San Francisco Webgirls' Top 25 Most Influential Women on the Web and has worked with Microsoft, AOL, eBay and the BBC "promot[ing] standards and best practices to create highly sustainable, maintainable, accessible, interactive and beautiful Web sites".
Holzschlag is a very active speaker on Open Web technologies, web design and accessibility. She was the 2004–2006 group lead for the Web Standards Project (WaSP), a coalition that campaigned browser makers such as Microsoft, Opera and Netscape to support modern web standards. She would later join Opera as an open and accessible web evangelist.
Molly currently works for Knowbility, for whom she teaches classes on Open Web technologies such as HTML5 and ARIA, with a strong emphasis on using inclusive design to overcome accessibility barriers. She has also taught webmaster courses for the University of Arizona, University of Phoenix, New School University, and Pima Community College.