Piques Obelisk, Stone monument in Largo da Memória, São Paulo, Brazil.

The Piques Obelisk is a light-grey granite obelisk almost five metres tall, standing at the Largo da Memória in central São Paulo. It was carved in 1814 by the master builder Vicente Gomes Pereira, known as "Vicentinho", under the direction of the military engineer Marshal Daniel Pedro Müller. The Chafariz do Piques, built the same year, stands at the back of the same largo.

Erected in 1814 by the Portuguese master builder Vicente Gomes Pereira, known as "Vicentinho", the obelisk is São Paulo's oldest monument. It was commissioned by the Count of Palma in honour of governor Bernardo José de Lorena and built under the direction of marshal Daniel Pedro Müller, who also oversaw the Chafariz do Piques and the old Carmo bridge. Carved from light grey granite, it was restored in 2005 with sponsorship from the Companhia Brasileira de Alumínio.

The obelisk and fountain were commissioned by the Conde de Palma as a tribute to governor Bernardo José de Lorena, which explains the monument's commemorative role at the Largo da Memória. Today the surrounding area is used as shelter by homeless people, and the site is considered dangerous and neglected despite being one of São Paulo's best-known landmarks.

The Largo da Memória area is considered very dangerous and has been abandoned despite being a major tourist point; the site currently shelters homeless people and has a constant smell of urine and dirt. Visitors should take this into account when planning a visit.

The obelisk was carved from light-grey granite and restored in 2005 by a private company, sponsored by Companhia Brasileira de Alumínio (CBA) of the Votorantim Group in partnership with the city's Department of Historical Heritage. CBA funded its conservation for the following two years. The restoration preserved the original features designed by engineer Daniel Pedro Müller.