Río Laja
Río Laja stands for:
- Río de La Laja , tributary of the Río Bío Bío in Chile
- Río Laja (Río Bermejo) , tributary of the Río Bermejo in Santa Cruz Department, Bolivia
- Río Laja (Río Lerma) , tributary of the Río Lerma in the municipality of Cortazar, Guanajuato, Mexico