Piet Arie de Ruiter (23 April 1939 – 15 August 2014) was a Dutch politician. He served as a member of the House of Representatives of the Netherlands between 1971 and 1976 for the Labour Party. He also served on the Public Body Rijnmond.^[1]

De Ruiter was born in Schiedam, in the late 1960s he served in the municipal council of Krimpen aan den IJssel.^[1] In 1965 he finished his study of economy at the Nederlandse Economische Hogeschool. He was editor of the magazine Economisch-Statistische Berichten (English: Economic-Statistic Messages) between 1965 and 1971. In 1970 he was elected to the council of the Public Body Rijnmond, he was elected there a further three times until 1982.^[1] Between 1976 and 1980 he held the executive portfolio for economic affairs, utilities and education in the Body. De Ruiter served as a member of the House of Representatives of the Netherlands between 1971 and 1976 for the Labour Party.^[1] After his time at the House of Representatives and Public Body Rijnmond he served in economic functions at the Ministry of Economic Affairs and municipality of Rotterdam.^[1] In this capacity he earned the title Port Personality of the Year 1983, concerning the Port of Rotterdam. He earned this title for his 1,5 year work in resolving a dispute between employers and employees in the port.^[2] He died on 15 August 2014 in Capelle aan den IJssel.^[1]