Scott Weiss is an American venture capitalist associated with the Silicon Valley firm Andreessen Horowitz, having joined as the firm's fourth general partner in April 2011.

A native of Sarasota, Florida, he founded and served as the CEO of IronPort Systems, a company that was acquired by Cisco Systems in 2007 for $830 million.

Weiss holds a Bachelor's degree from the University of Florida and an MBA from the Harvard Business School.