Piotrkowo may refer to the following places:

• Piotrkowo, Kuyavian-Pomeranian Voivodeship (north-central Poland)
• Piotrkowo, Iława County in Warmian-Masurian Voivodeship (north Poland)
• Piotrkowo, Nidzica County in Warmian-Masurian Voivodeship (north Poland)

• International Association of Sports Law
• International Association of Sufism
• International Association of Translation and Intercultural Studies
• International Association of Transport and Communication Museums
• International Association of Ultra Runners
• International Association of University Presidents
• International Association of Worldloppet Skiers
• International Association on the Political Use of Psychiatry
• International associations
• International Ataturk-Alatoo University
• International Athletics Championships and Games
• International Auditing and Assurance Standards Board
• International Auschwitz Committee
• International Authority for the Ruhr
• International Automated Systems Inc.
• International Automobilausstellung
• International Automobil Ausstellung
• International Automobil-Ausstellung
• International Automobile Ausstellung
• International Automobile-Ausstellung
• International Automobile Company
• International Automobile Construction Company
• International Automobile Federation
• International Automobile League
• International Automotive Design