Alexandre de Campos Velho Birck (born November 10, 1967) is a Brazilian drummer best known for his work with influential rock band Graforreia Xilarmônica.

Birck was born in Porto Alegre, Rio Grande do Sul, on November 10, 1967.

[2] In 1983, alongside his older brother Marcelo Birck, future TNT guitarist Luís "Tchê" Gomes and future Os Cascavelletes bassist Frank Jorge, Alexandre was part of the short-lived band Prisão de Ventre, which lasted only for two years.

[3][4] In 1987 he reunited with his brother and Jorge to form, alongside Carlo Pianta, the cult band Graforreia Xilarmônica.

In 1988 the Birck brothers founded Aristóteles de Ananias Jr., a side project to Graforreia Xilarmônica, alongside Luciano Zanatta, Diego Silveira and Chico Machado.