The 20th International Web for All Conference (W4A’23), the premier venue for web accessibility research, will take place in Austin, Texas. W4A is co-located with the 32nd International World Wide Web Conference – TheWebConf’23. The conference focuses on all aspects of web accessibility. Areas of general interest include, but are not limited to the following: age, cognition, culture, education, emotions, dexterity, disability, diversity, health, hearing, income, infrastructure, language, learning, literacy, mobility, neurodiversity, situation, society, and vision.