Mary Martha Byrne (an haife ta a ranar 23 ga watan Disamba shekarar 1969) Ba’amurkiyar ’yar fim ce, mawaƙiya kuma marubuciya a talabijin. Ta taka rawar Lily Walsh Snyder a wasan kwaikwayo na sabulu Kamar yadda Duniya ke juyawa daga shekarar 1985 zuwa shekara ta 1989, sannan kuma daga shekarar 1993 zuwa shekara ta 2008; haka kuma, daga shekarar 2000 zuwa shekara ta 2003, 'yar tagwayen Lily, Rose D'Angelo. Byrne ya kuma bayyana a wani mataki, talabijin da matsayin fim, gami da rawar take a cikin fim ɗin shekarar 1983 Anna zuwa Inarfin finitearshe . A halin yanzu ita ce babban mai gabatar da shirye-shiryen wasannin kwaikwayo na dijital Anacostia, inda ta taka rawar Alexis Jordan tun daga shekarar 2011. Byrne ta ci kyaututtukan Emmy Awards sau uku don wasan kwaikwayo. An haifi Byrne a Ridgewood, New Jersey, 'yar Terrence Joseph da Mary Adele (née TuMulty) Byrne. Byrne ta fara wasan kwaikwayo tun tana karama lokacin da ta shiga 'yar fim din Broadway mai suna Annie, inda ta taka rawa a watan Yuli.