DY, D. Y., Dy, or dy may refer to:

Science and technology

* , Leibniz's notation for the differential of a variable ''y'' *

Dysprosium Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it ...

(symbol Dy), a chemical element * 1,4-Dioxane, a solvent

Astronomy

DY Persei DY Persei is a variable star and carbon star in the Perseus constellation. At maximum it is 11th magnitude and at its faintest it drops to 16th magnitude. DY Persei is the prototype of the very rare DY Persei class of variables that pul ...

, a variable star in the Perseus constellation *

DY Persei variable DY Persei variables are a subclass of R Coronae Borealis (R CrB) variables. They are carbon-rich asymptotic giant branch (AGB) stars that exhibit pulsational variability of AGB stars and irregular fades similar to R CrB stars. The star DY Per ...

, a subclass of R Coronae Borealis variables * DY Eridani, a triple star system less than 16.5 light years away from Earth

Businesses

Norwegian Air Shuttle Norwegian Air Shuttle Aksjeselskap, ASA, trading as Norwegian, is a Norway, Norwegian Low-cost carrier, low-cost airline and Scandinavia's second-largest airline, behind Scandinavian Airlines. It is the fourth largest low-cost carrier in Europe ...

(IATA code: DY) * Alyemda (former IATA code: DY), a former Yemeni airline * DY, clothing brand of singer

Daddy Yankee Ramón Luis Ayala Rodríguez (; born February 3, 1976), known professionally as Daddy Yankee (), is a Puerto Rican rapper, singer, songwriter, and actor who rose to worldwide prominence in 2004 with the song "Gasolina". Dubbed the "Honorific ...

People

* Dy (surname), a surname in various cultures (including a list of people with the surname) * DY (rapper) (born 1984), Canadian rapper * DY, member of the American record production and songwriting team

808 Mafia 808 Mafia is an American record production and songwriting group founded by record producers TM88, Lex Luger, and Southside. Its other members include Fuse 100, Tarentino, Purps, Swede, Nonstop Da Hitman, and MP808, among others. The group's ...

* Lady Di,

Diana, Princess of Wales Diana, Princess of Wales (born Diana Frances Spencer; 1 July 1961 – 31 August 1997), was a member of the British royal family. She was the first wife of Charles III (then Prince of Wales) and mother of Princes William, ...

Places

* DY, the official

International vehicle registration code The country in which a motor vehicle's vehicle registration plate was issued may be indicated by an international vehicle registration code, also called Vehicle Registration Identification code or VRI code, formerly known as an International ...

for Benin (formerly Dahomey) *

DY postcode area The DY postcode area, also known as the Dudley postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of fourteen postcode districts in England, within eight post towns. These cover the south-western part of the West Midlands ...

, in England *

DY Patil Stadium The DY Patil Stadium (officially known as Dr. DY Patil Sports Stadium) is a multi-purpose sports arena in Navi Mumbai, Maharashtra, India. Owned by Marathi politician Dnyandeo Yashwantrao Patil, it is based in the D.Y. Patil Sports Academy ...

, a cricket stadium in India * D. Y. Patil college of Engineering and Technology, Kolhapur, in India

Other uses

dy (digraph) This is a list of digraphs used in various Latin alphabets. In the list, letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it would be in Danish, ...