M. lutea may refer to:
Malephora lutea, a succulent plant Malthopsis lutea, a bottom-dwelling fish Mangelia lutea, a sea snail Marginella lutea, a margin shell Markhamia lutea, a plant native to eastern Africa Massilia lutea, a gram-negative bacterium Mbipia lutea, a cichlid endemic to Lake Victoria Melaleuca lutea, a dicotyledonous plant Melanella lutea, a sea snail Mesolimnophila lutea, a crane fly Mitra lutea, a miter snail Mitrasacme lutea, a flowering plant Monochaetia lutea, a fungus that forms its spores in a sac-like ascus Monopsis lutea, a herbaceous plant Mordellistena lutea, a tumbling flower beetle Mordellochroidea lutea, a tumbling flower beetle Motacilla lutea, an insectivorous passerine Musa lutea, a gigantic herb Myceliophthora lutea, a fungus that forms its spores in a sac-like ascus Mycoacia lutea, a corticioid fungus Myrmicaria lutea, an ant with seven-segmented antennae