Lally Family History
Lally Name Meaning
Irish: shortened form of Mullally . In some cases possibly also French: habitational name with fused definite article l' from either of two places called Ally (Cantal Haute-Loire). Alternatively a variant of Laly a habitational name from a place so named (e.g. in Loire). Compare Lalley .
Source: Dictionary of American Family Names 2nd edition, 2022