| Onésimo Mariscales | |
| Birth Date: | 1953 2, df=yes |
| Birth Place: | Sinaloa, Mexico |
| Occupation: | Politician |
Onésimo Mariscales Delgadillo (born 16 February 1953) is a Mexican politician from the Institutional Revolutionary Party (PRI). From 2009 to 2012 he served in the Chamber of Deputies representing Sonora's 7th district during the 61st Congress.[1]