Piccardo or Picardo is an Italian surname, a version of Picard, meaning a person from Picardy, a historical region and cultural area of France.
It is found primarily in Liguria.
In the 19th century a family branch relocated from Voltri, in the Kingdom of Sardinia, to Monte San Giovanni Campano, in the Papal States.
A branch of the family also settled in the Eastern North America, according to genealogical organisation House of Names.
They were famous entrepreneurs in the paper industry of the region Liguria and in Southern Lazio.