Rahu graha gayatri mantram or Rahu Gayatri mantras are the Gayatri mantras to be chanted during Rahu graha puja or Rahu Shanti Puja (Puja to pacify the effects of Planet Rahu). Here are the Rahu graha Gayatri mantras for Adhi devata and Prati devata along with the main Rahu gayatri mantra.
Rahu Graha Gayatri Mantram
Om ardhakayaya vidmahe simhika suthaya dheemahi thanno Rahu prachodayath
Adhi Devata Mantram
Om vanchapradayai vidmahe surabhi rupinyai dheemahi thann0 gausscha prachodayath
Prathyadhi devata mantram
Om nagarupaya vidmahe kadraveyaya dheemahi thanna sarpa prachodayath