Among the population aged 16 years and over whose gender identity was different to their sex registered at birth, 13.4% reported that they could speak Welsh.
Ymhlith y boblogaeth 16 oed neu hŷn yr oedd eu hunaniaeth rhywedd yn wahanol i'r rhyw a gofrestrwyd adeg eu geni, dywedodd 13.4% eu bod yn gallu siarad Cymraeg.