Dorothy Olivia Georgiana Peto OBE KPFSM (15 December 1886 – 26 February 1974) was an English police officer.

In April 1930, Peto transferred to the Metropolitan Police as Staff Officer in charge of the Women's Section, with the attested rank of Superintendent.

Peto was credited with using the Children and Young Persons Act 1933 to take ownership of cases involving child abuse and based on that she established a special role for policewomen.

[4] Her arguments along these lines continued and in 1943 she increased the number of policewomen further by drawing the commissioner's attention to juvenile delinquency, broken homes and the general problems created by the second world war.

Peto was appointed Officer of the Order of the British Empire (OBE) in the 1920 civilian war honours.