Bailiff or law enforcer
Derived from the Middle English word 'baili', it originally served as an occupational surname for a bailiff or administrative official. It signifies a person of authority who was responsible for managing a district or estate. This specific spelling is often associated with Scottish heritage.
Less common today
Baillie isn't in the latest US Top 1000. It last peaked at #2,788 in 1991.
Scottish investment firm co-founder Augustus Baillie
British music video and film director
US births per 5-year period, 1990βpresent (SSA data).