World archives and resources
Below there is a list of archives where you can start your ancestral research.
Austria
Australia
Belarus
Archives of Belarus website: Official portal for access to archival materials and resources, legislation in archives and records management, information on archival institutions and services in the Republic of Belarus.
Central archives and institutions:
Regional and local state archives:
Canada
https://www.bac-lac.gc.ca/eng/discover/immigration/history-ethnic-cultural/Pages/polish.aspx
https://www.bac-lac.gc.ca/eng/discover/genealogy/Pages/introduction.aspx
http://www.archivescanada.ca/car/car_e.asp?l=e&a=genealogy and http://www.archivescanada.ca/car/car_e.asp?l=e&a=alpha
https://www.genealogiequebec.com/en/?gclid=EAIaIQobChMIwf3o6crR2gIVHJ7ACh3AZw13EAAYASAAEgLIyfD_BwE
Czechia
France
Germany
Family history collections of the Reichsippenamt, Jewish civil status documents
Evangelical Central Archives in Berlin
Israel
Lithuania
http://www.archyvai.lt/en/news.html and https://www.archyvai.lt/en/genealogical-search.html
http://www.epaveldas.lt/vbspi/lang.do;jsessionid=7B1287F60C6CA463161D784F7EB876D7?language=en
Latvia
New Zealand
Poland
Civil Registry, State and Church Archives https://sites.google.com/view/polishgenealogygroup/polish-archives-in-a-nutshell
Military Historical Bureau (formerly Central Military Archive) http://wbh.wp.mil.pl/pl/
please use this form to obtain detailed information about your ancestor (military records, not genealogy research), this form should be mailed by post to Wojskowe Biuro Historyczne, 2A Pontonierów Street, 00-910 Warszawa, Poland (please note that only signed and mailed request will be considered)
Polish Railway archive https://www.pkp.pl/pl/bip-archiwa
Russia
St. Petersburg Archive https://spbarchives.ru
St. Petersburg Russian State Historical Archive
Ukraine
Donetsk archive collection https://tsdea.archives.gov.ua/ua/metric-books/?fbclid=IwAR2w37mSgxq-pUau5_1JvqovFVc8WZpUXarpRkQjw1vZVxJMr3YY1HGnJhw
Ivano-Frankivsk Archive http://daifo.if.gov.ua/
collection (in Ukrainian use google chrome to translate)
Kharkiv Archive http://archives.kh.gov.ua/
Volyn Archive https://volyn.archives.gov.ua/
collection (in Ukrainian use google chrome to translate)
collection (in Polish)
Odessa Archive https://archives.gov.ua/Eng/
the United Kingdom
http://www.pism.co.uk/ (Sikorski Institute)
https://www.gov.uk/guidance/request-records-of-deceased-service-personnel (MOD)
Other useful free websites: