Nepalese Americans are Americans of Nepalese ancestry. Immigration from Nepal to the United States began in the 20th century, and many have been able to establish themselves as American nationals. The history of immigration from Nepal to America is more recent in comparison to other South Asian ethnic groups. Major community groups of Nepali Americans consists Newars, Tharus, Tamangs, Gurungs, Limbus, Rais, Magar, Lhotshampas, Sherpas, Brahmans and Khas and others, as of American Nepalese Convention Survey of 2018.

The Nepali American population is the fastest growing Asian American population in the United States; in 2020, 219,503 Americans identified themselves as being of Nepali descent, an increase of 269% from the previous census of 2010, where 59,490 Americans identified themselves as Nepali.

Nepali Americans began migrating to the United States in the early 20th century. The first Nepalese immigrants to enter the United States were classified as "other Asian". Nepalese Americans were first classified as a separate ethnic group in 1974 when 56 Nepalese people had immigrated to the United States. The number of immigrants from Nepal remained below 100 per year until 1992.

According to the 1990 U.S. Census, there were 2,616 Americans with Nepalese ancestry. Fewer than 100 Nepalese immigrants became U.S. citizens each year, but the number of Nepalese who become legal residents had grown steadily from 78 in 1987 to 431 in 1996. The Nepalese community experienced significant growth in population during the 2000s. The poor political and economic conditions caused by the Nepalese Civil War marked increased emigration from Nepal. Now, significant communities of Nepali-Americans exist in large metropolitan areas such as Texas, New York City, Boston, Chicago, Denver, Gainesville, Florida, Philadelphia, Portland, Oregon, and Saint Paul, Minnesota. Sizable numbers also live in various cities of California, such as Artesia (1.2% Nepalese American) and Sonoma (0.6%). Gradually, this community has been integrating into mainstream politics. Harry Bhandari became the first Nepalese American to be elected to public office when he won a State Delegate race in Maryland in 2018. Bhandari beat an incumbent and has become the first minority to win any election in the history of the majority White American district.

As of 2010, the largest communities of Nepalese were in the following cities:

According to estimates from the American Community Survey for 2015-2019, there were 140,900 Nepalese immigrants in the U.S. of that number, the top counties of settlement were as follows:

1) Queens County, NY -------------------------- 8,100

2) Tarrant County, TX ----------------------------- 6,300