The Sema Dhammachakra Award is a prestigious Thai honour bestowed upon individuals and organisations that have rendered outstanding service to Buddhism. Established in 1982, it is regarded as one of the highest forms of recognition for contributions to the promotion, preservation, and dissemination of Buddhist teachings in Thailand.

The award takes the form of a symbolic pillar surmounted by the Dharmachakra (fig.) or Wheel of Law, representing both the propagation of the Buddha's teachings and the role of recipients as pillars of the Buddhist community. The wheel features 12 spokes, symbolising the twelve links of dependent origination, which describe the cycle of cause and effect that leads to suffering and rebirth.