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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.

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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.

Czech and Slovak Republic (Outlines with Maps)
Sections

What Members Say

Brno, Moravia
In a short time my membership in CGSI has paid off big time.
Ron B., Garland, Texas, USA

News & Events

CGSI 2022 Annual Membership Meeting & Election of Officers (online event)
Please join CGSI at 10 AM Central on Saturday, May 21, 2022 for "Our Ukrainian Cousins: Understanding Cultural & Historical Ties  Across…
Recordings of two presentations given as part of the "The Roots of Medicine" CGSI webinar on February 26, 2022 are now available for on-demand viewing by members.
Dec
03

St. Nicholas and Christmas workshops at UMS (program)

United Moravian Societies (UMS) presents St. Nicholas and Christmas workshops in the Chicago area. Everyone is welcome to join us!
Dec
03

TCHCC Annual Gala (music program)

Texas Czech Heritage & Cultural Center (TCHCC) invites you to its Annual Gala honoring Czech bands in La Grange, Texas.
Dec
16

Vianočná pošta 2022 (Christmas Post Office) from Slovenská pošta (activity)

Available NOW THROUGH December 16, 2022. Give your children or grandchildren a unique atmosphere of Christmas miracles and allow them to write a letter to infant Jesus (Ježiško) through the Christmas mail courtesy of Slovenská pošta (…
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