Title

Vítáme Vás! (We welcome you!)

Research and connect with families from the Czech and Slovak ancestral lands.

CGSI focuses on the areas of present-day Czech Republic and Slovakia. This includes Czech (Bohemian), German-Bohemian (Böhmisch), Hungarian, Jewish, Moravian, Rusyn (Ruthenian), Silesian, and Slovak ancestry.

CGSI has over 2,000 members residing in the United States, Canada, Czech Republic, Slovakia, and other countries, providing a vast networking opportunity to learn and share information, and connect with fellow members.

Czechoslovak Genealogical Society International (CGSI) wants to help you research and connect with your family history.

We are dedicated to genealogical research and interest in descendants of ethnic groups with roots from the Czech and Slovak ancestral lands of Central Europe.

Why Join?

Purchase a Membership

Czech and Slovak Republic (Outlines with Maps)

Sections

Early-bird registration is now open for the 2025 CGSI Genealogical & Cultural Conference.

A CGSI conference is a great place to learn, share, and connect with the genealogy, history, and culture of those from the Czech and Slovak ancestral lands of Central Europe. The format allows you to connect with information, resources, and other attendees via presentations and workshops, tours, networking opportunities, and social events.

Complete conference details are available in the Program and Registration Booklet, which you can download by clicking here.

What Members Say

News & Events

2025 CGSI Conference Registration Now Open!

Early-bird registration is now open for the 2025 CGSI Genealogical & Cultural Conference.

Now Available on CGSI.org: The Denní Hlasatel Archive

To learn more about this unique resource, visit the Denní Hlasatel Archive home page.

Online Czech Genealogy Course

Are you interested in expanding your Czech genealogy skills? Beginning in January 2025, CGSI is partnering with Sokol Minnesota to offer the online course "Genealogie; hledáme své předky (Genealogy: Looking for Our Ancestors)" from the…

May

17

CGSI Quarterly Program: Researching in the CGSI Denní Hlasatel Archive

Discover the valuable genealogical resource of

May

21

Czech Center Museum Houston (CCMH) - Stříbrňanka Brass Band "Beer and Moravian Brass" [concert]

Celebrate with good friends and good music as Stříbrňanka serenades audiences at the Czech Center Museum Houston. Featuring traditional dechovka music and favorite brass arrangements, with Czech beers (plus root beer!) - it’s an evening…

Aug

02

CGSI Czech & Slovak Research Discussion Group (online event)

The next CGSI Czech & Slovak Research Discussion Group meets (virtually) online to share resources and discoveries among members. Moderated by CGSI Education Chair Iveta Blahútová. Please join us!