Pielke may refer to:

• Roger A. Pielke (born 1946), atmospheric climatologist
• Roger A. Pielke, Jr. (born 1968, son of Roger A. Pielke), writer on climate change policy
• Emil B. Pielke, politician in Maryland, US

• Gregory Stiemsma
• Gregory Stone (disambiguation)
• Gregory Stuart Dobbs
• Gregory St. Vincent
• Gregory Sullivan Isaacs
• Gregory Sumner
• Gregory's Wolf
• Gregory Sykes
• Gregory Taronites
• Gregory Taronites (disambiguation)
• Gregory Taronites (governor of Chaldia)
• Gregory T. Bedell
• Gregory Tebbutt
• Gregory Terrace
• Gregory Tesser
• Gregory Teu
• Gregory (The Americans)
• Gregory the XVII, The Very Great
• Gregory, Thomas
• Gregory Thomas Waddle
• Gregory Thompson
• Gregory Thompson (disambiguation)
• Gregory Thompson (writer)
• Gregory Thomson
• Gregory Thurston Bedell