| Election Name: | 1918 New York gubernatorial election |
| Country: | New York |
| Flag Image: | Flag of New York (1909–2020).svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1916 New York state election |
| Previous Year: | 1916 |
| Next Election: | 1920 New York gubernatorial election |
| Next Year: | 1920 |
| Election Date: | November 5, 1918 |
| Image1: | File:Portrait of Al Smith (cropped).jpg |
| Nominee1: | Al Smith |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 1,009,936 |
| Percentage1: | 47.36% |
| Nominee2: | Charles S. Whitman |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 995,094 |
| Percentage2: | 46.66% |
| Image3: | 3x4.svg |
| Nominee3: | Charles W. Ervin |
| Party3: | Socialist Party of America |
| Popular Vote3: | 121,705 |
| Percentage3: | 5.71% |
| Governor | |
| Before Election: | Charles S. Whitman |
| Before Party: | Republican Party (United States) |
| After Election: | Al Smith |
| After Party: | Democratic Party (United States) |
The 1918 New York gubernatorial election took place on November 5, 1918, to elect the Governor and Lieutenant Governor of New York, concurrently with elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.
Al Smith, president of the New York City aldermen, was elected to the first of his four two-year terms as governor.
Following his failed candidacy for U.S. Senate in 1914, Franklin D. Roosevelt reconciled with Tammany Hall. He delivered the keynote address at the society's 1917 Fourth of July celebration, and Tammany stalwarts John M. Riehle, William Kelley, Thomas J. McManus, and up-and-comer Jimmy Walker endorsed him as a potential candidate for governor in 1918. President Woodrow Wilson also privately urged Roosevelt to consider a campaign. However, he refused, believing that the ongoing Great War would continue through the election and that 1918 would be a Republican year.
Roosevelt instead endorsed William Church Osborn,[1] though he would later claim to have engineered Smith's nomination himself.