Tracy Chou is an American software engineer and entrepreneur renowned for her advocacy for diversity and inclusion in the technology industry. She is the founder and CEO of Block Party, a platform designed to combat online harassment by providing users with tools to filter and manage unwanted content. Prior to founding Block Party, Chou co-founded Project Include, a non-profit organization aimed at accelerating diversity and inclusion solutions in tech companies. Her efforts have earned her recognition as one of TIME's Women of the Year in 2022.

Prior to founding Block Party, Tracy Chou amassed extensive experience in the tech industry. She began her career as an intern at Facebook in 2008, where she witnessed the transformative potential of social media. After completing her studies, she joined Quora as the company's fourth employee, contributing significantly to the platform's early development. In October 2011, Chou transitioned to Pinterest, becoming one of its first 15 employees and playing a pivotal role in scaling the platform. During her tenure at Pinterest, she became a prominent advocate for diversity in tech, publishing a 2013 Medium post titled "Where are the numbers?" that highlighted the underrepresentation of women in engineering roles and called for greater transparency in workforce diversity data. She also co-founded Project Include in 2016, aiming to accelerate diversity and inclusion solutions in tech companies.

In 2018, leveraging her technical expertise and personal experiences with online harassment, Tracy Chou founded Block Party, a platform designed to empower individuals to control their online interactions and combat abuse. The platform officially launched in early 2021, initially focusing on filtering harassment on Twitter. In September 2022, Block Party secured $4.8 million in seed funding, enabling the company to expand its services to other social media platforms. Despite facing challenges, such as losing access to Twitter's API in early 2024, Block Party adapted by pivoting towards broader privacy solutions, demonstrating Chou's resilience and commitment to creating safer online environments.