Top hat (disambiguation)

A top hat is a tall hat worn primarily in the 19th and early 20th century.

Top hat, Top Hat, Tophat or Top-hat may also refer to:

• Top Hat, a 1935 film starring Fred Astaire and Ginger Rogers
• Top Hat (musical), a 2011 stage musical adapted from the 1935 film
• Top hat (lighting), a theatrical lighting device
• Top hat (roller coaster element)
• TopHat (telescope), a balloon-borne experiment to measure the cosmic microwave background
• Top Hat (TUGS), a recurring character in the children's television series TUGS
• Top Hat 25 and Top Hat 27, Australian-made sailing yachts
• Top-hat filter, a signal filtering technique
• Top-hat transform, a mathematics morphological operation
• TopHat (bioinformatics) is a bioinformatic tool for fast and high throughput alignment (eg by Bowtie) and mapping of shotgun transcriptomic sequencing reads (eg RNA-seq) to a reference genome to discover RNA splice sites.
• TOPHAT, cryptonym of Dmitri Polyakov (1921-1988), a Soviet general and a spy for the CIA.
• Tophat beam, a kind of laser beam
• Operation Top Hat, a "local field exercise" conducted by the United States Army Chemical Corps in 1953
• Top hat, another name for a steel batten

Distinguish from

• Tophet