The Polish alphabet is the script of the Polish language, the basis for the Polish system of orthography. It is based on the Latin alphabet but includes certain letters with diacritics: the kreska or acute accent (ć, ń, ó, ś, ź); the overdot or kropka (ż); the tail or ogonek (ą, ę); and the stroke (ł). The letters q, v and x, which are used only in foreign words, are frequently not considered part of the Polish alphabet. However, prior to the standardization of the Polish language, the letter "x" was sometimes used in place of "ks".
Modified variations of the Polish alphabet are used for writing Silesian and Kashubian, whereas the Sorbian languages use a mixture of the Polish and Czech orthographies.
When Q, V and X are excluded, there are 32 letters in the Polish alphabet: 9 vowels and 23 consonants.
The following table lists the letters of the alphabet, their Polish names (see also Names of letters below), the Polish phonemes which they usually represent, rough English (or other) equivalents to the sounds of those phonemes, and other possible pronunciations. Diacritics are shown for the sake of clarity. For more information about the sounds, see Polish phonology.
The letters q (named: ku), v (named: fau), and x (named iks) do not belong to the Polish alphabet, but are used in some foreign words and commercial names. In loanwords they are often replaced by kw, w, and ks, respectively (as in kwarc "quartz", weranda "veranda", ekstra "extra").