- Kingdom: Animalia
- Phylum: Chordata
- Subphylum: Vertebrata
- Superclass: Gnathostomata
- Class: Actinopterygii
- Order: Scorpaeniformes
- Family: Triglidae
- Scientific name: Eutrigla gurnardus
- Norwegian: knurr
The distinct forehead gives the grey gurnard a characteristic, steep profile. The body is slender. It has a dark spot on the first dorsal fin. The second dorsal fin is long and almost rectangular shaped. The coloration is dominated by different shades of grey, brown or red. The grey gurnard may grow 50 cm in length and to a weight of 1.2 kg, but this is rare.
The grey gurnard is often seen walking on the three spines in front of its breast fins. It prefers sandy substrate, sometimes as deep as 150 meters. During the night it sometimes migrate up to the subtidal zone. It is common as far north as the Varanger Fjord.
It is widespread in the North East Atlantic Ocean from Iceland and Norway to Morocco and Madeira. It is also known from the Mediterranean and the Black Sea.