Abstract: This patent application relates generally to mixture deconvolution systems and methods for identifying DNA profiles. Various embodiments of the present invention concern the deconvolution of unknown DNA profiles in a two-person DNA mixture into two DNA profiles. Deconvolution methods isolate distinct DNA profiles from a DNA mixture without the need to match against DNA reference profiles. Various embodiments include a mixture deconvolution pipeline that involves a series of mathematical steps and machine learning algorithms to achieve the desired performance and decision-support outputs. Various embodiments enable distant familial matching to existing investigative genetic genealogy (IGG; also known as forensic genetic genealogy (FGG)) databases. This capability enables the generation of investigative leads from unresolved casework samples (i.e., DNA mixtures) by identifying possible genealogical relationships to one or more person(s) of interest.