Lecturers are Smithsonian Astrophysical Observatory (SAO) scientists who teach Harvard courses and/or advise Harvard graduate students. Below is a list of current lecturers.

Sean M. Andrews, Lecturer on Astronomy

Steven N. Cranmer, Lecturer on Astronomy

Thomas M. Dame, Lecturer on Astronomy

Rosanne Di Stefano, Lecturer on Astronomy

Martin Elvis, Lecturer on Astronomy

Giovanni Fazio, Lecturer on Astronomy

Christine Jones Forman, Lecturer on Astronomy

William Forman, Lecturer on Astronomy

Matthew Holman, Lecturer on Astronomy

Lisa Kaltenegger, Lecturer on Astronomy

Justin Kasper, Lecturer on Astronomy

David Latham, Lecturer on Astronomy

Jeffrey McClintock, Lecturer on Astronomy

Nicholas Murphy, Lecturer on Astronomy

Ruth Murray-Clay, Affiliate in Astronomy

Philip M. Sadler, Senior Lecturer

Howard Smith, Lecturer on Astronomy

Andrew Szentgyorgyi, Lecturer on Astronomy

Alexey A. Vikhlinin, Lecturer on Astronomy

David Wilner, Lecturer on Astronomy