It is identical with its sole borough, Bratislava's Old Town (Slovak: Staré mesto; German: Altstadt; Hungarian: Óváros).

Old Town's western boundary is the eastern wall of the original Botanical Garden of the Comenius University area, today running partly though a parking lot underneath the Lafranconi Bridge, the boundary then crosses the tram lines of the Nábr.

gen. L. Svobodu Street and continues through the eastern side of the Mlynská dolina Street until the State Geological Institute of Dionýz Štúr on Patrónka where the boundary crosses to the other side of the street, continuing to the junction of Lamačská cesta – Cesta na Červený most, then it crosses the railway line Malacky - Bratislava near Bratislava Železná studienka railway station where it sharply turns towards south-east.

Old Town's northern boundary is the northern side of the Malacky - Bratislava railway line, it continues through the eastern part of Opavská Street, it crosses the Limbová Street at the place of the underpass underneath the railway tracks, continues through the northern side of the railway line and the southern side of Opavská Street.

It continues through the western side of the underpass underneath the railway tracks and then it turns to the northeast and continues through the northern side of the Dobšinského Street until its crossing with Smrečianska Street.