;Bishops of Santa Maria •
Miguel de Lima Valverde (6 February 1911 – 10 February 1922) •
Ático Eusébio da Rocha (27 October 1922 – 17 December 1928) •
Antônio Reis (31 July 1931 – 14 September 1960) •
Luís Victor Sartori (14 September 1960 – 10 April 1970) • Coadjutor bishop 1956–60 •
Érico Ferrari (29 April 1971 – 29 April 1973) •
José Ivo Lorscheiter (5 February 1974 – 24 March 2004) • Hélio Adelar Rubert (24 March 2004 – 13 April 2011) ;Archbishops of Santa Maria • Hélio Adelar Rubert (13 April 2011 — present) ;Auxiliary bishops •
João Cláudio Colling (1949–1951), appointed Bishop of Passo Fundo, Rio Grande do Sul •
Walmor Battú Wichrowski (1961–1965), resigned; appointed Bishop of Cruz Alta, Rio Grande do Sul in 1971 •
Antônio do Carmo Cheuiche, OCD (1969–1971), appointed Auxiliary Bishop of Porto Alegre, Rio Grande do Sul ;Other priests of this diocese who became bishops •
Edson Taschetto (Tasquetto) Damian, appointed Bishop of São Gabriel da Cachoeira, Amazonas in 2009 •
José Mário Scalon Angonese, appointed Auxiliary Bishop of Curitiba, Parana in 2013 == Suffragan Sees ==