Many a Campbell and member of a Campbell sept has sought the answer to that question upon first becoming interested in his or her Scottish heritage. There is only one authority on the correct tartan or tartans of a clan: the chief of that clan.

Torquhil Ian Campbell, (born 29 May 1968) Chief of Clan Campbell, the 13th (S) and 6th (UK) Duke of Argyll, inherited the title on 21 April 2001. The family's main seat is Inveraray Castle where the Duke and Duchess live with their three children.

Historically one of the largest and most powerful of the Scottish Highland clans. Campbell lands started in Argyll in the west, east to Perth and Kinross, and extended to the north as far as Nairn. Clan Campbell origins are placed amongst the ancient Britons of Strathclyde.

The Campbell DNA Project was launched in October of 2002 with the purpose of trying to help genealogy researchers break through brick walls. The goal of the project was to attempt to get DNA samples of several Campbell reference lineages and to look at opportunities to link current genealogy research to these lines.

The Clan Campbell Society (North America) Genealogy Program serves as a clearing house of information concerning CAMPBELL data. The process is threefold: (1) gathering and processing data, (2) researching these data, and (3) analyzing and reporting findings.