于坚（1954年－），云南昆明人，中国现代诗人。曾经当过工人，1984年毕业于云南大学中文系。
Yu Jian (Chinese: 于坚;), born 1954, is a Chinese poet, writer and documentary film director. He is a major figure among ‘The Third Generation Poets’ that came after the Misty Poetry movement of the early 1980s. His work has been translated into English, French, German, Dutch, Spanish, Italian, Swedish, Danish, and Japanese.