diff --git a/WebApp/Components/Features/Calendar/Import.razor b/WebApp/Components/Features/Calendar/Import.razor
index c7f8b32..d69f037 100644
--- a/WebApp/Components/Features/Calendar/Import.razor
+++ b/WebApp/Components/Features/Calendar/Import.razor
@@ -330,10 +330,20 @@
         try
         {
             var savedCount = 0;
+            var skippedCount = 0;
+            
             foreach (var kvp in _parseResult.Occurrences)
             {
                 foreach (var occurrence in kvp.Value)
                 {
+                    // Check for duplicates before adding
+                    var isDuplicate = await IsDuplicate(occurrence);
+                    if (isDuplicate)
+                    {
+                        skippedCount++;
+                        continue;
+                    }
+                    
                     // Add each occurrence to the database
                     await Context.EventOccurrences.AddAsync(occurrence);
                     savedCount++;
@@ -341,7 +351,13 @@
             }
 
             await Context.SaveChangesAsync();
-            Snackbar.Add($"Successfully saved {savedCount} occurrence(s) to database", Severity.Success);
+            
+            var message = $"Successfully saved {savedCount} occurrence(s) to database";
+            if (skippedCount > 0)
+            {
+                message += $" ({skippedCount} duplicate(s) skipped)";
+            }
+            Snackbar.Add(message, Severity.Success);
             
             // Clear input and output instead of navigating
             _inputText = string.Empty;
@@ -357,6 +373,33 @@
         }
     }
 
+    private async Task<bool> IsDuplicate(EventOccurrence occurrence)
+    {
+        // Check if an occurrence with the same name, date, time, location, and event definition already exists
+        var query = Context.EventOccurrences
+            .Where(eo => eo.Name == occurrence.Name &&
+                        eo.StartTime.Date == occurrence.StartTime.Date &&
+                        eo.Time == occurrence.Time &&
+                        eo.Location == occurrence.Location);
+
+        // Match by EventDefinitionId if it exists, otherwise match by SpecialEventType
+        if (occurrence.EventDefinitionId.HasValue)
+        {
+            query = query.Where(eo => eo.EventDefinitionId == occurrence.EventDefinitionId);
+        }
+        else if (!string.IsNullOrEmpty(occurrence.SpecialEventType))
+        {
+            query = query.Where(eo => eo.SpecialEventType == occurrence.SpecialEventType);
+        }
+        else
+        {
+            // If neither EventDefinitionId nor SpecialEventType is set, match by both being null/empty
+            query = query.Where(eo => eo.EventDefinitionId == null && string.IsNullOrEmpty(eo.SpecialEventType));
+        }
+
+        return await query.AnyAsync();
+    }
+
     private string GetEventName(EventDefinition eventDefinition)
     {
         if (eventDefinition == EventDefinition.GeneralSchedule)