Dinah Schiffer Singer (born 1948) is an American immunologist specialized in the regulation of transcription in cancer, gene expression, and molecular immunology.

She continues to lead NCI's implementation of the Cancer Moonshot, which has resulted in 240 new research activities to address the BRP's recommendations.

[5] Singer's research interests are in the areas of regulation of transcription in cancer, gene expression and molecular immunology.

Her research has provided insights into the molecular mechanisms that regulate MHC class I transcription in vivo.

Singer's research program was focused on interrogating the regulatory networks governing transcription to generate an integrated understanding of the interplay between promoter elements and transcription complexes that establish appropriate regulation of gene expression across diverse cellular and tissue environments.