Class P: Language and Literature is a classification used by the Library of Congress classification system. This article outlines the subclasses of Class P

	P	Philology; Linguistics
	PA	Greek language and literature; Latin language and literature
	PB	Modern languages ; Celtic languages
	PC	Romanic languages
	PD	Germanic languages
	PE	English language
	PF	West Germanic languages
	PG	Slavic languages; Baltic languages; Albanian language
	PH	Uralic languages; Basque language
	PJ	Oriental philology and literature
	PK	Indo-Iranian philology and literature
	PL	Languages of Eastern Asia, Africa, Oceania
	PM	Hyperborean, Indian, and artificial languages
	PN	Literature (General)
	PQ	French literature - Italian literature - Spanish literature - Portuguese literature
	PR	English literature
	PS	American literature
	PT	German literature - Dutch literature - Flemish literature since 1830 - Scandanavian literature - Old Norse literature : Old Icelandic and Old Norwegian - Modern Icelandic literature - Faroese literature - Danish literature - Norwegian literature - Swedish literature
	PZ	Fiction and juvenile belles lettres