Collins Line
| New York and Liverpool United States Mail Steamship Company | |
| Company type | Ocean-going transport |
| Founded | 1818 |
| Founder | Israel Collins, Edward Knight Collins |
| Defunct | 1858 |
| Fate | Bankrupt following recession and termination of government subsidy |
| Headquarters | New York |
Area served | Routes: Transatlantic, Gulf of Mexico Ports of call: Liverpool, New Orleans, Veracruz |
Key people | Bankers: Brown Bros. & Co. |
| Services | Shipping company |
| Ships owned | Arctic, Baltic, Pacific, Atlantic, and Adriatic |
| Competitors | Cunard Line |
| Govt contracts | Mail contract |
| Govt subsidies | $385,000 annually (occasionally more) |
The Collins Line, formally the New York and Liverpool United States Mail Steamship Company, was an American maritime transport company started by Israel Collins and then built up by his son Edward Knight Collins. Under Edward Collins' guidance, the company grew to be a serious competitor to the British Cunard Line.