diff --git a/backend/app/schemas/chore_completion_log.py b/backend/app/schemas/chore_completion_log.py
new file mode 100644
index 0000000..67e5d19
--- /dev/null
+++ b/backend/app/schemas/chore_completion_log.py
@@ -0,0 +1,66 @@
+"""Schemas for Chore Completion Logs."""
+from pydantic import BaseModel, Field
+from datetime import datetime
+from typing import Optional
+
+
+class ChoreCompletionLogBase(BaseModel):
+    """Base schema for chore completion log."""
+    notes: Optional[str] = Field(None, description="Optional notes about the completion")
+
+
+class ChoreCompletionLogCreate(ChoreCompletionLogBase):
+    """Schema for creating a chore completion log."""
+    chore_id: int = Field(..., description="ID of the chore being completed")
+    user_id: int = Field(..., description="ID of the user completing the chore")
+    completed_at: Optional[datetime] = Field(None, description="When the chore was completed (defaults to now)")
+
+
+class ChoreCompletionLogUpdate(BaseModel):
+    """Schema for updating a chore completion log."""
+    notes: Optional[str] = Field(None, description="Update notes about the completion")
+    verified_by_user_id: Optional[int] = Field(None, description="ID of user verifying the completion")
+
+
+class ChoreCompletionLog(ChoreCompletionLogBase):
+    """Schema for chore completion log response."""
+    id: int
+    chore_id: int
+    user_id: int
+    completed_at: datetime
+    verified_by_user_id: Optional[int] = None
+    created_at: datetime
+    
+    # Nested objects for expanded responses
+    chore_title: Optional[str] = None
+    user_name: Optional[str] = None
+    user_avatar: Optional[str] = None
+    verified_by_name: Optional[str] = None
+    
+    class Config:
+        from_attributes = True
+
+
+class WeeklyChoreReport(BaseModel):
+    """Schema for weekly chore completion report."""
+    start_date: datetime
+    end_date: datetime
+    total_completions: int
+    completions_by_user: dict[str, int]  # {username: count}
+    completions_by_chore: dict[str, int]  # {chore_title: count}
+    completions_by_day: dict[str, int]  # {day: count}
+    top_performers: list[dict]  # [{username, count, avatar_url}]
+    recent_completions: list[ChoreCompletionLog]
+
+
+class UserChoreStats(BaseModel):
+    """Schema for user-specific chore statistics."""
+    user_id: int
+    username: str
+    full_name: Optional[str] = None
+    avatar_url: Optional[str] = None
+    total_completions: int
+    completions_this_week: int
+    completions_this_month: int
+    favorite_chore: Optional[str] = None
+    recent_completions: list[ChoreCompletionLog]