Ida Holz Bard (born 30 January 1935) is a Uruguayan engineer, computer scientist, professor, and researcher, known as a pioneer in the field of computing and the Internet.

Ida Holz helped bring the internet to Latin America. Shortly after she graduated from Universidad de la República in Uruguay, she and her family were exiled to Mexico. Upon her return, Holz directed the Central Computer Service (SECIU) of the Universidad de la República, where she oversaw the implementation of the first node of the internet in Latin America.

She played a leading role in the construction of the Latin American Network Forum, the Latin American and Caribbean Internet Address Registry, the organization of Latin American and Caribbean ccTLDs, and the Latin American Cooperative of Advanced Networks (RedCLARA), according to her Internet Hall of Fame profile.