Ukrainian Americans are Americans who are of Ukrainian ancestry. According to U.S. census estimates, in 2021 there were 1,017,586 Americans of Ukrainian descent representing 0.3% of the American population. The Ukrainian population of the United States is thus the second largest outside the former Eastern Bloc; only Canada has a larger Ukrainian community under this definition. According to the 2000 U.S. census, the metropolitan areas with the largest numbers of Ukrainian Americans are: New York City with 160,000; Philadelphia with 60,000; Chicago with 46,000; Detroit with 45,000; Los Angeles with 36,000; Cleveland with 26,000; Sacramento with 20,000; and Indianapolis with 19,000. In 2018, the number of Ukrainian Americans surpassed 1 million.

Protestants in Ukraine number about 600,000 to 700,000 (2007), about 2% of the total population. Nearly all traditional Protestant denominations are represented in the country. According to Christianity Today magazine, Ukraine has become not just the "Bible Belt" of Eastern Europe, but a "hub of evangelical church life, education, and missions". At present, the country is a key supplier of missionaries and a center of evangelical training and press printing for all the countries of the former Soviet Union, where the legal environment is not so favourable.