The largest Mitochondrial DNA Database with thousands and thousands of people that have tested their mtDNA with different labs and testing sites, MitoSearch.org is a free public service that allows individuals that have tested with those companies to make their results available for comparison.

You can easily maneuver through the database, search by last name, closest matches as people display their family trees to help make these relation matches. Get your DNA tested at Family Tree DNA and you are put in the largest Y chromosome and Mitochondrial database in existence.

Mitomap.org has a database of mtDNA but is not used for analysis, just reporting.

One option is to install The mtDNA Population Database on to your computer. You should be familiar with the other databases as this one can read complicated.

Sorenson Molecular Genealogy Foundation (SMGF) has a mtDNA database. You have to sign up though it is a free account. It is best to check all avenues.

There are DNA databases that revolve around Y chromosome DNA.

All these DNA databases in one toolbar to make your search so much easier. For Mitochondrial DNA Testing and Y Chromosome Testing.