diff --git a/Dalamud/Game/UnlockState/UnlockState.cs b/Dalamud/Game/UnlockState/UnlockState.cs
index 939548803..a5f53ed5e 100644
--- a/Dalamud/Game/UnlockState/UnlockState.cs
+++ b/Dalamud/Game/UnlockState/UnlockState.cs
@@ -376,6 +376,15 @@ internal unsafe class UnlockState : IInternalDisposableService, IUnlockState
         return UIState.IsPublicContentUnlocked(row.RowId);
     }
 
+    /// <inheritdoc/>
+    public bool IsQuestCompleted(Quest row)
+    {
+        if (!this.IsLoaded)
+            return false;
+
+        return QuestManager.IsQuestComplete(row.RowId);
+    }
+
     /// <inheritdoc/>
     public bool IsRecipeUnlocked(Recipe row)
     {
@@ -536,6 +545,9 @@ internal unsafe class UnlockState : IInternalDisposableService, IUnlockState
         if (rowRef.TryGetValue<PublicContentSheet>(out var publicContentRow))
             return this.IsPublicContentUnlocked(publicContentRow);
 
+        if (rowRef.TryGetValue<Quest>(out var questRow))
+            return this.IsQuestCompleted(questRow);
+
         if (rowRef.TryGetValue<Recipe>(out var recipeRow))
             return this.IsRecipeUnlocked(recipeRow);
 
@@ -629,6 +641,7 @@ internal unsafe class UnlockState : IInternalDisposableService, IUnlockState
         this.UpdateUnlocksForSheet<Ornament>();
         this.UpdateUnlocksForSheet<Perform>();
         this.UpdateUnlocksForSheet<PublicContentSheet>();
+        this.UpdateUnlocksForSheet<Quest>();
         this.UpdateUnlocksForSheet<Recipe>();
         this.UpdateUnlocksForSheet<SecretRecipeBook>();
         this.UpdateUnlocksForSheet<Trait>();
@@ -822,6 +835,9 @@ internal class UnlockStatePluginScoped : IInternalDisposableService, IUnlockStat
     /// <inheritdoc/>
     public bool IsPublicContentUnlocked(PublicContentSheet row) => this.unlockStateService.IsPublicContentUnlocked(row);
 
+    /// <inheritdoc/>
+    public bool IsQuestCompleted(Quest row) => this.unlockStateService.IsQuestCompleted(row);
+
     /// <inheritdoc/>
     public bool IsRecipeUnlocked(Recipe row) => this.unlockStateService.IsRecipeUnlocked(row);
 
diff --git a/Dalamud/Plugin/Services/IUnlockState.cs b/Dalamud/Plugin/Services/IUnlockState.cs
index 6703ece2e..6fcae5d35 100644
--- a/Dalamud/Plugin/Services/IUnlockState.cs
+++ b/Dalamud/Plugin/Services/IUnlockState.cs
@@ -268,6 +268,13 @@ public interface IUnlockState : IDalamudService
     /// <returns><see langword="true"/> if unlocked; otherwise, <see langword="false"/>.</returns>
     bool IsPublicContentUnlocked(PublicContent row);
 
+    /// <summary>
+    /// Determines whether the specified Quest is completed.
+    /// </summary>
+    /// <param name="row">The Quest row to check.</param>
+    /// <returns><see langword="true"/> if completed; otherwise, <see langword="false"/>.</returns>
+    bool IsQuestCompleted(Quest row);
+
     /// <summary>
     /// Determines whether the specified Recipe is unlocked.
     /// </summary>