UThemba Nhlanganiso Masuku (owazalwa ngo-7 Julayi 1950) ungusopolitiki waseSwazini osebenze njengePhini likaNdunankulu wase- Eswatini kusukela ngo-2018 nanjengoNdunankulu osabambile kusukela ngomhlaka 13 Disemba 2020 kuya ku-16 Julayi 2021. Phambilini ubesebenza njengePhini likaNdunankulu kusuka ngo-2008 kwaze kwaba ngu-2013. UMasuku wazalwa ngomhlaka 7 Julayi 1950.Uthole iziqu zakhe zeMasters of Science e- University of Missouri. Ngawo-1990, wagcwalisa izikhundla ezahlukahlukene kuhulumeni waseSwaziland, kubalwa uNgqongqoshe Wezolimo Nemifelandawonye, uNgqongqoshe Wezokuhlelwa Kwezomnotho Nentuthuko, kanye noNgqongqoshe Wezezimali kusuka ngonyaka we-1996 kuya ku-1998.Ubuye wasebenza neFood and Agriculture Organisation yeZizwe Ezihlangene, njengomqondisi wamahhovisi okuxhumana eGeneva naseNew York kamuva. Waqokwa njengePhini likaNdunankulu ngonyaka ka-2008 yiNkosi uMswati III futhi wasebenza kuleso sikhundla kwaze kwaba ngu-2013, lapho eba ngumphathi wesifunda sesifunda saseShiselweni . UMasuku ubuyele esikhundleni sakhe njengePhini likaNdunankulu ngenkathi uNdunankulu u- Ambrose Mandvulo Dlamini ethula iKhabhinethi lakhe ngoNovemba 2018. Waba ngundunankulu osabambile ngemuva kokushona kukaDlamini ngomhlaka 13 Disemba 2020. Ngokomthethosisekelo wase-Eswatini, uThemba Masuku bekufanele asebenze njengoNdunankulu osabambile isikhathi esiyizinyanga ezintathu.