Yes, excessive alcohol consumption is a well-known risk factor for various types of cancer, including:

Mouth cancer
Throat cancer
Esophageal cancer
Liver cancer
Breast cancer (in women)
Colorectal cancer

The risk of developing cancer increases with the amount and duration of alcohol consumption. The World Health Organization has classified alcohol as a Group 1 carcinogen, meaning it is a substance that is known to cause cancer in humans. It is recommended to limit alcohol consumption to reduce the risk of developing cancer and other health problems.