The paper presents an estimation of three Lolium multiflorum and three Lolium boucheanum cultivars as regards the yield and total protein content. One foreign and two domestic cultivars were studied in the investigations conducted at the Experimental Station of Cultivar Estimation at Pawłowice near Gliwice (situated at 250 m a.s.l.). Polish cultivars of Lolium multiflorum; i.e. Atos and Lotos were characterised by a yield similar to that produced by the Dutch Montblanc cultivar. Among Lolium multiflorum cvs. Danish Pirol generated a lower dry matter yield in comparison with the Polish Agata and Mega cultivars. During the first year of the investigations all cultivars contained lower amounts of total protein (on average 10-15%) than in the second year. The foreign Lolium cultivars had similar total protein content like Polish ones.