San Telmo or "St. Pedro González Telmo" is one of the oldest neighborhoods of Buenos Aires and also one of the best preserved areas of that constantly changing Argentine metropolis, with a number of colonial houses and streets still paved with the original cobblestones (adoquines).

San Telmo's many attractions include many old churches (e.g. San Pedro Telmo), museums, antique stores and a semi-permanent antique fair (Feria de Antiguedades) in the main public square, Plaza Dorrego. Tango-related activities for both locals and tourists also abound in the area.