Brown Swiss is a breed of dairy cattle that produces the second largest quantity of milk per annum, over 9,000 kg (20,000 lb).

The milk contains on average 4% butterfat and 3.5% protein, making their milk excellent for production of cheese. The Brown Swiss is known for a long gestation period, immense size, large furry ears, and an extremely docile temperament. Regardless, the Brown Swiss is quite a resilient breed of cattle; they are hardy and capable of subsisting with little care or feed.

Brown Swiss don't produce as much milk as Holsteins do, but can produce around 90 gallons per day. The Brown Swiss breed is originally from Switzerland, and are thus remarkably adapted to mountainous and rugged terrain in the Swiss Alps.