Demonstrative pronouns in Swedish grammar are used to identify or point out specific nouns in a sentence. They help to clarify which object or person the speaker is referring to, and the distance between the speaker and the object or person. There are three main demonstrative pronouns in Swedish: “den här” (this), “det här” (this), and “de här” (these) for close proximity, and “den där” (that), “det där” (that), and “de där” (those) for farther distances.