diff --git a/smoothschedule/schedule/management/commands/seed_holidays.py b/smoothschedule/schedule/management/commands/seed_holidays.py
new file mode 100644
index 0000000..cb23ecd
--- /dev/null
+++ b/smoothschedule/schedule/management/commands/seed_holidays.py
@@ -0,0 +1,201 @@
+"""Management command to seed US holidays."""
+from django.core.management.base import BaseCommand
+
+from schedule.models import Holiday
+
+
+US_HOLIDAYS = [
+    # Fixed date holidays
+    {
+        "code": "new_years_day",
+        "name": "New Year's Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 1,
+        "day": 1,
+    },
+    {
+        "code": "independence_day",
+        "name": "Independence Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 7,
+        "day": 4,
+    },
+    {
+        "code": "veterans_day",
+        "name": "Veterans Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 11,
+        "day": 11,
+    },
+    {
+        "code": "christmas_eve",
+        "name": "Christmas Eve",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 12,
+        "day": 24,
+    },
+    {
+        "code": "christmas_day",
+        "name": "Christmas Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 12,
+        "day": 25,
+    },
+    {
+        "code": "new_years_eve",
+        "name": "New Year's Eve",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 12,
+        "day": 31,
+    },
+    # Floating holidays (Nth weekday of month)
+    {
+        "code": "mlk_day",
+        "name": "Martin Luther King Jr. Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 1,
+        "week_of_month": 3,  # 3rd Monday of January
+        "day_of_week": 0,    # Monday
+    },
+    {
+        "code": "presidents_day",
+        "name": "Presidents Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 2,
+        "week_of_month": 3,  # 3rd Monday of February
+        "day_of_week": 0,    # Monday
+    },
+    {
+        "code": "memorial_day",
+        "name": "Memorial Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 5,
+        "week_of_month": 5,  # Last Monday of May (5 = last)
+        "day_of_week": 0,    # Monday
+    },
+    {
+        "code": "juneteenth",
+        "name": "Juneteenth",
+        "country": "US",
+        "holiday_type": Holiday.Type.FIXED,
+        "month": 6,
+        "day": 19,
+    },
+    {
+        "code": "labor_day",
+        "name": "Labor Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 9,
+        "week_of_month": 1,  # 1st Monday of September
+        "day_of_week": 0,    # Monday
+    },
+    {
+        "code": "columbus_day",
+        "name": "Columbus Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 10,
+        "week_of_month": 2,  # 2nd Monday of October
+        "day_of_week": 0,    # Monday
+    },
+    {
+        "code": "thanksgiving",
+        "name": "Thanksgiving Day",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 11,
+        "week_of_month": 4,  # 4th Thursday of November
+        "day_of_week": 3,    # Thursday
+    },
+    {
+        "code": "thanksgiving_friday",
+        "name": "Day After Thanksgiving",
+        "country": "US",
+        "holiday_type": Holiday.Type.FLOATING,
+        "month": 11,
+        "week_of_month": 4,  # 4th Friday of November (day after Thanksgiving)
+        "day_of_week": 4,    # Friday
+    },
+    # Calculated holidays (Easter-based)
+    {
+        "code": "easter",
+        "name": "Easter Sunday",
+        "country": "US",
+        "holiday_type": Holiday.Type.CALCULATED,
+        "calculation_rule": "easter",
+    },
+    {
+        "code": "good_friday",
+        "name": "Good Friday",
+        "country": "US",
+        "holiday_type": Holiday.Type.CALCULATED,
+        "calculation_rule": "easter-2",  # 2 days before Easter
+    },
+]
+
+
+class Command(BaseCommand):
+    """Seed US holidays into the database."""
+
+    help = "Seed US holidays for the time blocking system"
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            "--clear",
+            action="store_true",
+            help="Clear existing holidays before seeding",
+        )
+
+    def handle(self, *args, **options):
+        """Create or update holiday records."""
+        if options["clear"]:
+            deleted_count, _ = Holiday.objects.filter(country="US").delete()
+            self.stdout.write(
+                self.style.WARNING(f"Deleted {deleted_count} existing US holidays")
+            )
+
+        created_count = 0
+        updated_count = 0
+
+        for holiday_data in US_HOLIDAYS:
+            code = holiday_data["code"]
+            holiday, created = Holiday.objects.update_or_create(
+                code=code,
+                defaults=holiday_data,
+            )
+            if created:
+                created_count += 1
+                self.stdout.write(f"  Created: {holiday.name}")
+            else:
+                updated_count += 1
+                self.stdout.write(f"  Updated: {holiday.name}")
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                f"\nDone! Created {created_count}, updated {updated_count} holidays."
+            )
+        )
+
+        # Show sample dates for the current year
+        from datetime import date
+        current_year = date.today().year
+        self.stdout.write(f"\nHoliday dates for {current_year}:")
+        for holiday in Holiday.objects.filter(country="US", is_active=True).order_by("month", "day"):
+            try:
+                holiday_date = holiday.get_date_for_year(current_year)
+                if holiday_date:
+                    self.stdout.write(f"  {holiday.name}: {holiday_date.strftime('%B %d, %Y')}")
+            except Exception as e:
+                self.stdout.write(
+                    self.style.ERROR(f"  {holiday.name}: Error calculating date - {e}")
+                )