Rattan Lal (born 5 September 1944) is a soil scientist. His work focuses on regenerative agriculture through which soil can help resolve global issues such as climate change, food security and water quality.

He was awarded the 2019 Japan Prize 'for the sustainable soil management for global food security and mitigation of climate change.'

On June 11, 2020, Professor Lal was named the recipient of the prestigious World Food Prize-2020. His research diverged from the conventional 1970s soil fertility strategy of heavy reliance on commercial fertilizers. His research led a better understanding of how no-till farming, cover crops, crop residues, mulching, and agroforestry can restore degraded soils, increasing organic matter by sequestering atmospheric carbon in the soil, and help combat rising carbon dioxide levels in the air. In 2021, he was elected as member of European Academy of Engineering.