The Bank of London and South America Limited (BOLSA; Spanish: Banco de Londres y América del Sur, also known simply as Banco de Londres) was a British bank, which operated in South America between 1923 and 1971.

The acquisitions included Banco de A. Edwards, one of the largest banks in Chile.

BOLSA contributed its branches in Central and northern South America to the joint venture.

In 1966, the bank opened a new local headquarters in central Buenos Aires, designed by Argentine architect Clorindo Testa.

[5] The archive contains over 1000 volumes of letter books and accounting records, with correspondence relating primarily to Uruguay, Brazil, Argentina, and Chile.