Maria Giovanna Clementi, called la Clementina, was an Italian painter, specializing in portraits.

She was born in Turin, the daughter of a surgeon, Giovanni Pietro Giuseppe Bussano (Bussana, Buzana) and Maria Cristina Ausineti. Her husband was Giuseppe Bartolomeo Clementi, about whom little is known. She trained in Turin with court painter Giovanni Battista Curlando, who advised her to specialize in portraits. In 1733 she resided with her husband in the palace of Count Carlo Giacinto Roero.

Some documents show that at least since 1722, she worked for the court, painting portraits of members of the royal family of Savoy that were to be exchanged with other European courts.