Interrogative pronouns in Icelandic grammar, also known as “spurnorföll”, are essential elements in the construction of questions. They are utilized to refer to people, things, or ideas that are being asked about, and correlate directly to who, what, where, when, why, and how in English. Depending on their role in a sentence and the gender, case, and number of what they are referring to, these pronouns will change form.