Hsi Hsia or Hsi-hsia may be a transliteration variant from Chinese for one of the following
- Chinese: 西夏; pinyin: Xī Xià; literally "Western Xia"
- Western Xia (Xi Xia), an ancient state (Tangut empire)
- Tangut language
- Tanguts
- Simplified Chinese: 熙洽
- Xi Qia, a Chinese general