Nevada's 18th Senate district is one of 21 districts in the Nevada Senate. It was most recently represented by Republican Scott Hammond from 2012 to 2023.
District 18 covers the northwestern edge of the Las Vegas Valley in Clark County, including parts of Summerlin and Las Vegas proper.
The district is located entirely within Nevada's 4th congressional district, and overlaps with the 4th and 13th districts of the Nevada Assembly.
Nevada Senators are elected to staggered four-year terms; since 2012 redistricting, the 18th district has held elections in presidential years.