If you have a Duncan in your family tree and you have any DNA test, male or female you are encouraged to join! The Duncan Ancestor DNA Project was established as One Name Study in Wikitree to explore and document Duncan families, and to help those interested in Duncan genealogy to confirm their Duncan family lines based on DNA evidence. The Duncan Family Project welcomes anyone who is interested in working together to find their common heritage by sharing information and DNA testing. This project is about using our DNA testing (Y-DNA, atDNA (Family Finder) and mtDNA) together to find answers on how our Duncan families fit together. As a One Name Study, our goal is to document the genealogy and family history of all individuals with the surname Duncan, even if they are not directly related. As of May 2025, Wikitree has over 24,600 Duncan profiles, with many more needing profiles. If you have taken a Y-DNA test, please consider also joining these groups: * Donnachaidh Project: to get your Y-DNA results classified in the correct Duncan Subgroup. The Y-DNA test then provides the framework on how our DNA connections relate our Duncan families. This project is a companion project to the Donnachaidh Project, using the Duncan Subgroups as a framework to sort our families into separate family groups. *R1b-FGC19845: This group is geared specifically towards Duncan Subgroup B, descended from William Robert Duncan m. Susan Haldane. All participants will be included in the ongoing studies and by joining the project; you are giving consent for your information to be anonymously included in ongoing genetic genealogy research. Your personal identity will not be revealed, but your results will be used to better understand the Duncan surname as a people and the history of our ancestors. Help us please! Thank you! This project is affiliated with the Duncan Name Study at WikiTree . https://www.wikitree.com/wiki/Space:Duncan_Name_Study We encourage you to join Wikitree and at a minimum enter your Duncan family line, in addition to your DNA test information.