By or BY may refer to:
People By Saam (1914–2000), American sports announcer John By (1779–1836), British military engineer famous for his work in Canada
Places By, Doubs, France, a commune By, Norway, a village Bavaria (ISO state code) Belarus (ISO country code) Burundi (obsolete FIPS Pub 10-4 and NATO digram country codes) Bytča District (vehicle registration plate code until 2022)
Other uses .by, country-code top-level domain for Belarus The attribution (BY) condition of Creative Commons licenses Budget year, a synonym for fiscal year B-Y, blue-luminance difference in color TUI Airways (IATA code: BY), formerly Thomson Airways, Thomsonfly and Britannia Airways
See also
-by, a common suffix for settlements in northern England
Beye Bye (disambiguation) Buy (disambiguation) Bie (disambiguation) BI (disambiguation)