In law, a question of law, also known as a point of law, is a question that must be answered by applying relevant legal principles to interpretation of the law. Such a question is distinct from a question of fact, which must be answered by reference to facts and evidence as well as inferences arising from those facts. Answers to questions of law are generally expressed in terms of broad legal principles and can be applied to many situations rather than be dependent on particular circumstances or factual situations. An answer to a question of law as applied to the particular facts of a case is often referred to as a conclusion of law.

In several civil law jurisdictions, the highest courts deem questions of fact as having been settled by the lower courts and will only consider questions of law. They thus may refer a case back to a lower court to re-apply the law and answer any fact-based evaluations based on their answer on the application of the law. International courts such as the Benelux Court of Justice and the European Court of Justice will only answer questions of law, asked by judges of national courts if they are not certain about the interpretation of the law of multilateral organizations.

Questions of law are resolved by a judge or equivalent, while questions of fact are resolved by a trier of fact, which in the common law system is often a jury. Conclusions of law are more readily reconsidered by an appellate court, whereas findings of fact in a common law legal system are rarely overturned.