Altha is a variant of Alta (English and Spanish) in the English language.
Altha is also a variant of Althea (English).
Altha is uncommon as a baby name for girls. At the height of its usage in 1901, 0.013% of baby girls were named Altha. It ranked at #530 then. The baby name has since fallen out of favor, and is of only very modest use today. Within all girl names in its group, Altha was nevertheless the most popular in 2018.
† Pronunciation for Altha: AE as in "at (AE.T)" ; L as in "lay (L.EY)" ; TH as in "theme (TH.IY.M)" ; AH as in "mud (M.AH.D)"