| English  | English ryegrass  |   |   | 1  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| English  | perennial ryegrass  |   |   | 1  | Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.   | 
| Afrikaans  | meerjarige raaigras  |   |   | 2  | Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa.  Plant Protection Research Institute, Handbook 12   | 
| Arabic  | gazun  |   |   | 2  | Boulos, L. & M. N. El-Hadidi. 1984. The weeds of Egypt.   | 
| English (Canada)  | perennial rye grass  |   | Agriculture & Agri-Food Canada official name  | 2  | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.   | 
| French  | ivraie vivace  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| French  | ray-grass anglais  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| French (Canada)  | ivraie vivace  |   | Agriculture & Agroalimentaire Canada nom officiel  | 2  | Darbyshire, S. J. 2003. Inventory of Canadian Agricultural Weeds Agriculture and Agri-Food Canada. 30.   | 
| German  | deutsches Weidelgras  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| German  | englisches Raygras  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Italian  | loglio perenne  |   |   | 2  | International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.   | 
| Japanese Rōmaji  | hoso-mugi  |   |   | 2  | Ohwi, J. 1965. Flora of Japan (Engl. ed.).   | 
| Portuguese  | azevém-vivaz  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Portuguese  | lólio-perenne  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Spanish  | ballico perenne  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Spanish  | césped inglés  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Spanish  | raygras  |   |   | 2  | Rehm, S. 1994. Multilingual dictionary of agronomic plants   | 
| Swedish  | engelskt rajgräs  |   |   | 2  | Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)   | 
| Transcribed Chinese  | hei mai cao  |   |   | 2  | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).   | 
| Transcribed Korean  | homilpul  |   |   | 2  | Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:106.   |