The American Catholic Church in the United States (ACCUS) is an Independent Catholic church primarily in the United States, founded in 1999 by Lawrence J. Harms in Frederick, Maryland.

[1] The ACCUS claims apostolic succession through Carlos Duarte Costa.

[2] As of 2018, the ACCUS was composed of 1 bishop, 15 priests, and 3 deacons in 13 U.S.

[3] The American Catholic Church in the United States states that it adheres to the doctrine of Second Vatican Council.

[4] It celebrates the seven sacraments of baptism, confirmation, communion, reconciliation, anointing of the sick, holy orders and matrimony; and believes the sacrament of marriage can be celebrated for same-sex couples.