More than 100 people showed up to see the new sign outside Wesley United Methodist Church on Saturday afternoon.
The sign honors victims of Travis County lynchings.
Community leaders spoke to a full sanctuary, detailing the importance of education and civil rights.
"We care, and this will never happen again. That’s our commitment," said Nelson Linder with Austin NAACP. "But only through education and involvement can we resolve those kinds of things. We have to own this and make this city better, and today we did.”
The sign is the first unveiling in Texas as part of this national initiative.
Linder asked people to come together more often to work on social justice.