The Witcher 3 main quests

This page is a finding aid which lists all main quests in The Witcher 3: Wild Hunt first by Chapter, and then in the order in which they normally are started within the chapter but can be sorted alphabetically for searching. Each quest will only appear in the Chapter where it starts appeared, even if the quest persists through more than one Chapter. To see a quest walkthrough, click on the quest name.

Prologue
Prologue Walkthrough (No Commentaries):

A ct I
Main quests within Act I can generally be completed in any order you like. For example, you can finish some (or all) of the Main Quests in Novigrad, then sail to Skellige, and then return to Velen. The way the quests are presented in this guide (Velen, then Novigrad, then Skellige) represent the optimal paths.