The review contains information on the use of nanomaterials and safety issues, regulation and research related to nanomaterials in Finland. Nanomaterials have at least one dimension between 1–100 nanometers. At the nanoscale, materials can exhibit unique chemical, physical, electronic and mechanical properties. Nanotechnology is used to improve the properties of materials. Manufactured nanomaterials are used in nearly all industrial sectors. As a result of human activity, nanoparticles are also generated unintentionally through various processes and combustion. The impact that nanomaterials have on health or the environment is not yet fully understood. The assessment of health and environmental risks is based on information on the hazardous properties and exposure levels of nanomaterials. Exposure to manufactured nanomaterials may occur during the production process or the use of these products. However, as a rule, the risk of exposure to manufactured nanomaterials in consumer products is minimal. The regulation of nanomaterials builds on EU and national legislation concerning chemicals, food and medicines. The EU also has sector-specific legislation on the safe use of nanomaterials. The European Commission is directing more and more funding to the research on the safety of nanomaterials. In Finland, universities and government research institutes conduct valuable safety and material-related research on nanomaterials.