In the United States, the term hyphenated American refers to the use of a hyphen between the name of an ethnicity and the word American in compound nouns, e.g., as in Irish-American. Calling a person a "hyphenated American" was used as an insult alleging divided political or national loyalties, especially in times of war. It was used from 1890 to 1920 to disparage Americans who were of foreign birth or ancestry and who displayed an affection for their ancestral language and culture. It was most commonly used during World War I against Americans from White ethnic backgrounds who favored United States neutrality during the ongoing conflict or who opposed the idea of an American alliance with the British Empire and the creation of what is now called the Special Relationship, even for purely political reasons.

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.