A polarizing plate and an optical display including the same are provided. A polarizing plate includes: a polarizing film; a first base layer; and a pattern layer, the first base layer and the pattern layer being sequentially arranged on a light exit surface of the polarizing film, and the pattern layer includes a first layer and a second layer sequentially arranged on the first base layer, the first layer having a higher index of refraction than the second layer, and the first layer includes a patterned portion at at least a portion thereof facing the second layer, the patterned portion including at least two optical patterns and a flat section between optical patterns of the at least two optical patterns that are adjacent to each other.