Erwin Raphael McManus (born Irving Rafael Mesa-Cardona; August 28, 1958) is a Salvadoran-American author, filmmaker, and fashion designer.

McManus also received a Doctorate in Humane Letters, an honorary degree, from Southeastern University in Lakeland, Florida.

Mosaic has opened multiple campuses, including Hollywood, Venice, Pasadena, Orange County, and Seattle.

McManus has used psychological personality metrics in his church, such as the Myers-Briggs type indicator and Gallup's Strengths Finder.

He speaks on topics like reinventing organizations, culture, community, equality, humanity, leadership, general motivation, futuristic ideas, inspiration, and spirituality.

On May 28, 2019, McManus in HYPEBEAST said that the church he is the senior pastor and CEO of, Mosaic, are inclusive to the gay (LGBTQ) community.

"On June 25, 2019, the writer of the article, Emily Jensen, updated it after several verified ex-Mosaic staff members claimed that McManus's position on the LGBTQ community is false, and that he and the church itself are anti-LGBTQ.

There are currently many people of varied race, color, ethnicity, economic status, sexual orientation, and religious beliefs who attend Mosaic.