Figure 8
Figure 8 (figure of 8 in British English) may refer to:

8 (number), in Arabic numerals

Geography
Figure Eight Island, North Carolina, United States
Figure Eight Lake, Alberta, Canada
Figure-Eight Loops, feature of the Historic Columbia River Highway in Guy W. Talbot State Park

Mathematics and sciences
∞, symbol meaning infinity
Figure 8, a two-lobed Lissajous curve
Figure 8, in topology, the rose with two petals
Figure 8, shape described by an analemma, a curve in astronomy
Figure-eight knot (mathematics), in knot theory
Lemniscate, various types of mathematical curve that resembles a figure 8

Music
Albums and EPs
Figure 8 (album), a 2000 album by Elliott Smith
"Figure of Eight" (song), a 1989 song by Paul McCartney
Figure Eight EP, a 2008 EP by This Et Al
"Figure 8" (song), a 2012 song by Ellie Goulding from Halcyon

Songs
"Figure 8", a song by FKA Twigs from the EP M3LL155X
"Figure 8", a song by Paramore from "This Is Why"
"Figure 8", a song by Paramore from  the album This Is Why
"Figure Eight", a song and episode name from the children's educational series Schoolhouse Rock!
"Figure of Eight", song by Status Quo from In Search of the Fourth Chord

Ropes
Figure eight bend or Flemish bend, a knot
Figure-eight knot, typically used as a stopper knot
Figure-eight loop, figure of eight knot tied "on the bight"

Sport and leisure
Figure 8 racing, a category of auto racing related to the demolition derby
Figure 8 roller coaster, a track design
Figure 8, shape from which compulsory figures in ice skating are derived
Figure 8, a riding figure used in the training of horses
Figure-eight, type of noseband
Figure eight turn, man overboard rescue turn in sailing
Figure 8 (belay device), a piece of rock climbing equipment
Figure of 8, figure in English country dance
Figure eight (angling), a technique used by anglers to fish specifically for the muskellunge

Other uses
Figure 8 or bi-directional, response pattern of some microphones
Figure 8 Puffer (Tetraodon biocellatus), breed of pufferfish
"Figure Eight", an episode and song from the children's educational series Schoolhouse Rock!
Figure Eight Inc., a crowdsourcing company related to machine learning
An IEC 60320 C7 power connector

See also
8 (disambiguation)
List of knots, the names of several of which contain "figure 8" or similar