Muhallab
Yes. Muhallab (or forms like al‑Muhallab) appears in early Islamic historical and biographical sources as an attested personal name or epithet.
Literally, Muhallab is an agentive formation from the root ح-ل-ب meaning 'to milk', so it denotes 'one who milks' or an occupational descriptor tied to pastoral activity.
It is historically grounded and uncommon today; families seeking a classical, rare name with historical resonance may choose it, mindful of its occupational origin.
Muhallab as a proper name does not appear as a Quranic proper noun; its attestations are primarily in historical chronicles and biographical literature rather than Quranic text.
Variations appear in manuscripts and regional transliterations (e.g., Muhallib, Muhallabah) and the name sometimes appears with the definite article in historical sources (al‑Muhallab).