Polka dot is a pattern consisting of an array of filled circles, generally equally sized and spaced relatively closely in relation to their diameters. Polka dots are most commonly seen on children's clothing, toys, and furniture, but they appear in a wide array of contexts. The pattern rarely appears in formal contexts, however, and is generally confined to more playful attire such as bathing suits and lingerie. Occasionally, white-on-black small dots appear on more formal clothing.
Polka dots became common on clothing in the late nineteenth century in the United Kingdom.The pattern shares its name with the dance form, making one suspect there is a connection linking the pattern to the dance.