Luo language or Lwo language may refer to:
- Luo languages, a family of Nilotic languages spoken by the Luo peoples from southern Sudan to southern Kenya
- Luo dialect or Dholuo, a dialect of the Luo group of Nilotic languages
- Luo language (Cameroon), an unclassified language spoken in the Atta region of Cameroon
- Luwo language, a Nilotic language spoken by the Luwo people in South Sudan