Shimoji (written: 下地) is a Japanese surname. Notable people with the surname include:
- Kazuaki Shimoji (下地 一明, born 1976), Japanese basketball coach
- Mikio Shimoji (下地 幹郎, born 1961), Japanese politician
- Shino Shimoji (下地 紫野), Japanese voice actress and singer
- Sho Shimoji (下地 奨, born 1985), Japanese footballer