Lotte Department Store () is a Korean retail company established in 1979, and headquartered in Sogong-dong, Jung-gu, Seoul, South Korea. Lotte Department Store offers retail consumer goods and services and is one out of 8 business units of Lotte Shopping. Other Lotte retail companies include discount store Lotte Mart and supermarket Lotte Super.
Lotte Department Store said October 24, 2024 it will invest 7 trillion won (US$5.06 billion) in shopping malls by 2030 as it seeks to diversify its business portfolios.