Arsi
（重定向自Arussi）
- Arsi Province, a former province of Ethiopia
- Arsi Zone, a zone within the Oromia region of Ethiopia
- Arsi Oromo, an Ethiopian clan of the Oromo people
- Arsi language, a dialect of Oromo language
- Arsi language, an extinct Tocharian language
- ARSI – Amateur Radio Society of India