رمضان is a masculine given name documented in Arabic, Persian and Urdu. English Wiktionary records an etymology for it.
English Wiktionary account
Source-reported
The month was a summer month in pre-Islamic times before the Quranic prohibition against leap months (Quran 9:37). Related to رَمَض (ramaḍ, “parchedness, scorchedness”) and رَمْضَاء (ramḍāʔ, “sun-baked ground”). Compare also اِرْتَمَضَ (irtamaḍa, “to be consumed by grief and sorrow”).
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