Due to serious, acute, chronic and genetic health hazards associated with common synthetic insecticides, the global tendency today is to search for herbal insecticides and insect repellents which are non-hazardous to human and domestic animals. Some herbal insecticides like Pyro-dust and Rotenone are already in use. Nicotine sulfate is another one but with significant toxicity. Neem (Azadirachta indica) oil is safe and useful insecticide but has a limited range of application. Based on our medico-ethno-botanical exploration in Uttarakhand, a state in the Himalayan region in India, the information was collected on potential insecticidal and insect repellent plants of the region. The present paper documents the occurrence of 17 such plants along the various altitudinal zones of Uttarakhand Himalaya in India. Significant botanical characters of plants with local names and their habitat have also been indicated.