View the most religious surnames in Belarus

Where Does The Last Name By Come From? ^{nationality or country of origin}

By (Hassaniya-Arabic: ﺑﻲ) occurs most in Vietnam. It can also appear as a variant:. For other potential spellings of this name click here.

How Common Is The Last Name By? ^{popularity and diffusion}

The last name is the 52,140^th most commonly held family name worldwide, held by around 1 in 741,886 people. It is mostly found in Asia, where 57 percent of By reside; 26 percent reside in Southeast Asia and 21 percent reside in Islamic South Asia. By is also the 58,621^st most frequently occurring forename worldwide, held by 10,684 people.

This last name is most widely held in Vietnam, where it is borne by 1,631 people, or 1 in 56,803. In Vietnam By is most prevalent in: Southeast, where 40 percent live, Red River Delta, where 18 percent live and North Central, where 11 percent live. Aside from Vietnam it exists in 107 countries. It is also common in Iran, where 10 percent live and Afghanistan, where 10 percent live.

By Family Population Trend ^{historical fluctuation}

The occurrence of By has changed over time. In The United States the number of people carrying the By last name increased 3,769 percent between 1880 and 2014.

By Last Name Statistics ^demography

The religious adherence of those holding the surname is principally Orthodox (82%) in Belarus, Shiite (91%) in Lebanon and Orthodox (71%) in Ukraine.

In The United States those bearing the By last name are 5.08% more likely to be registered Republicans than The US average, with 51.85% registered with the political party.

The amount By earn in different countries varies somewhat. In Norway they earn 6.05% less than the national average, earning 325,158 kr per year; in United States they earn 20.84% less than the national average, earning $34,157 USD per year and in Canada they earn 17.66% less than the national average, earning $40,910 CAD per year.