Seraphim (the plural of 'seraph') are symbolic creatures seen in a vision by the prophet Isaiah (see Isaiah 6:1-6). There is a similarity between these creatures, and those seen by Ezekiel in a similar vision (see Ezekiel ch.10) where they are called 'cherubim' (q.v.).

Similar creatures are seen in vision by the apostle John (Revelation ch.4). They represent the power and the glory of God in the earth.