Blur can refer to:

Unfocused imagery

"Blur" generally refers to the appearance of an unfocused image. See Defocus aberration, eyeglass prescription, lens and eye. Specific terms using this meaning of "Blur" include:

• Bokeh, the appearance of out-of-focus areas from an image produced by a lens
• Box blur, a graphic-art effect
• Gaussian blur, a graphic-art effect
• Motion blur, a photographic and optical effect

Computing

"blur" refers to the event when a GUI element loses focus.

Music

• Blur , an English rock band
• Blur , the above band's fifth album
• The Best Of, the above band's compilation album

Fiction

• The Blur, a pulp magazine novel featuring The Shadow
• "The Blur", a go-kart featured in the film The Little Rascals
• Blur , a fictional superhuman also known as "The Blur"
• Blurr, a fictional robot from The Transformers
• Blur, a 2007 film directed by Nick Briscoe

Studio

• Blur Studio, CGI animation company based in California

Blur