Harry Nelson

• Harry Nelson , singer and comedian
• Harry Nelson, American author and healthcare lawyer
• Harry Jakamarra Nelson, Aboriginal rights campaigner, on the committee of the Aboriginal Publications Foundation in the 1970s
• Harry L. Nelson, American mathematician
• Harry Nelson, Canadian participant in the Athletics at the 1954 British Empire and Commonwealth Games
• DCI Harry Nelson, a major fictitious character in Elly Griffiths' Ruth Galloway novels