Nii Tackie Tawiah I (born Nii Kwashi Tawiah, 1817–1902) was Ga Mantse, described by the Ghana News Agency as the 20th king of Ga Mashie, reigning from 12 December 1862 to 1902. He took part in campaigns of the 1860s, including the 1869 war at Asutuare alongside British forces, and was exiled by the British colonial government to Elmina from November 1880 to March 1883 before returning to his stool.
Nii Tackie Tawiah I is commemorated in Accra by a royal mausoleum.