Charles Glover Barkla

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' <tr><td colspan="2" style="text-align: center;">Image:Charles Glover Barkla.jpg
Charles Glover Barkla</td></tr>
Born	June 7, 1877 Widnes, Lancashire, England <tr><th>Died</th><td>October 23, 1944 Edinburgh, Scotland</td></tr><tr><th>Residence</th><td>Image:Flag of the United Kingdom.svg UK</td></tr><tr><th>Nationality</th><td>Image:Flag of the United Kingdom.svg British</td></tr><tr><th>Institution</th><td>Cambridge University</br>Liverpool University</br> University of London</br> University of Edinburgh</td></tr><tr><th>Alma Mater</th><td>University College Liverpool</br> Cambridge University</td></tr><tr><th>Known for</th><td>X-ray scattering</td></tr><tr><th>Notable Prizes</th><td>Nobel Prize in Physics (1917)</td></tr>

Charles Glover Barkla (June 7, 1877 – October 23, 1944) was a British physicist.

He was born in Widnes and studied at the Liverpool Institute and Liverpool University. In 1913, after having worked at the universities of Cambridge, Liverpool and King's College London he was appointed professor of natural philosophy at the University of Edinburgh, a position he held until his death. He married Mary Esther Cowell in 1907.

He evolved the laws of X-ray scattering and the laws governing the transmission of X rays through matter and excitation of secondary rays. For his discovery of the characteristic X-rays of elements he received the 1917 Nobel Prize in Physics. He was awarded the Royal Society's Hughes Medal that same year.

The lunar crater Barkla was named in his honour and a commemorative plaque is in the vicinity of the Canongate, near the Faculty of Education Buildings, University of Edinburgh.