Tha is an ancient and unique name of unknown etymology, originating from Wales. It is pronounced as 'tha' /θa/, rhyming with the word 'ma'. In Welsh, it is spelled 'Þa', with the letter Þ representing a sound similar to the th in English 'thin'. Tha was once popular among the early Celtic populations of Britain but has since become quite rare. It does not appear to have any known meaning or association with specific historical figures.
"Tha as a baby name experienced a notable increase in popularity between 2014 and 2019, with seven births recorded each year during this period. However, there was a slight dip in 2015 with only five births registered that year. The total number of babies named Tha over the span of these years is thirty-seven."