Sonja Tallis (born 24 September 1943) is an Australian actress, singer and drama teacher.

Tallis began her showbiz career as a folk singer, touring as part of a duo called "Sean & Sonja", before moving onto acting. After acting in serial The Young Doctors, she had a small role in Sons and Daughters, before going onto her best-known role, as top dog, Nora Flynn, in Prisoner which she played for six months between May and November 1985.^[1] She went on to a regular role in the short-lived Crawford's series Prime Time, as Georgina Jones, in 1986.^[2] She appeared in Home and Away and McLeod's Daughters.

Tallis has taught drama, both privately and in a number of schools in Sydney.