Katy originated as short for "Catherine", but also because of the letters K and T, as in Kansas-Texas (from the Missouri-Kansas-Texas Railroad}.

Katy may refer to:

People with the given name Katy:

Chase may refer to:

Dylan Kwabena Mills (born 18 September 1984), better known by his stage name Dizzee Rascal, is a UK and US-based rapper, songwriter and record producer of Ghanaian and Nigerian descent. His music is a blend of garage, hip hop, grime, ragga, pop and electronic music, with eclectic samples and more exotic styles. Best known for his number-one hits "Dance wiv Me", "Bonkers", "Holiday", "Dirtee Disco" & "Shout", his debut album, Boy in da Corner, won him the 2003 Mercury Prize. Follow-up albums Showtime, Maths + English and Tongue n' Cheek have all been critically acclaimed and certified gold, the last going platinum for sales exceeding 300,000 units.

Mills' Nigerian father died when he was young, and he was raised in Bow, in the East End of London in a single-parent family by his Ghanaian mother Priscilla, about whom he says: "I had issues as a kid. I was violent and disruptive. The way my mum helped was by finding me a different school every time I got kicked out, always fighting to keep me in the school system" he attended St Pauls Way Community School.

Stephen Paul Manderson (born on 27 November 1983), better known by his stage name Professor Green, is an English rapper. He was signed to The Beats, a record label run by Mike Skinner and Ted Mayhem, until 12 February 2008, when the label terminated. He rose to success upon winning the inaugural JumpOff MySpace £50,000 battle rap tournament in July 2008. Following this in 2009, Manderson worked with Lily Allen on her 2009 concert tour.

In 2006 he released his first mixtape, Lecture #1. After his first record label, The Beats, went under he produced on his own an EP called The Green EP. After he toured with Lily Allen he was signed to Virgin Records and released "I Need You Tonight", based around INXS's "Need You Tonight" through the label. He also joined up with Lily Allen in "Just Be Good To Green" which is based around The SOS Band's "Just Be Good to Me".

Green released his debut album, Alive Till I'm Dead, on 19 July 2010, which features guest vocals from Lily Allen, Emeli Sandé, Fink, Labrinth and Example, as well as The Streets, who used to own The Beats.

Kathleen Anne "Katy" Brien (born 8 May 1989 in Peckham, South London), better known as Katy B, is an English singer-songwriter and a graduate of the BRIT School. She is a dubstep, R&B, funky, house and UK garage singer and has also performed under the name Baby Katy. She released her first single with the label Rinse in 2010. The same year, she completed a degree in Popular Music at Goldsmiths, University of London. She was nominated for the 2011 Mercury Prize.

Katy was born in Peckham, South London in 1989, and attended Lyndhurst Primary school, Haberdashers' Aske's Hatcham College^{[citation needed]} and the BRIT School.

Katy featured on many tracks before and during the release of her album, DJ NG's song "Tell Me", on which she featured as Baby Katy, was released on a white label and later signed to Ministry of Sound. Katy B has collaborated with Geeneus to cover the Kevin Saunderson produced "Good Life" and the track "As I". She also provides vocals on the track "Hold Me" for The Count & Sinden's debut album Mega Mega Mega and features on Magnetic Man's tracks "Perfect Stranger" and "Crossover".