See also the related category hebrew.
Rahma is rarely used as a baby name for boys. It is not listed in the top 1000 names.
Baby names that sound like Rahma include Rama (Hebrew and Indian), Ramah, Raam (Hebrew), Racham (Hebrew), Raemonn, Rahaeim, Raham (English and Hebrew), Rahan, Rahane, Raheem (Arabic and English), Rahiem, Rahim (Arabic, English, and Iranian), Rahmahn, Rahman (Arabic and Turkish), Rahmen, Rahmin, Rahym, Raimee, Raimey, and Raimi.
† English pronunciation for Rahma: R as in "race (R.EY.S)" ; AA as in "odd (AA.D)" ; M as in "me (M.IY)"