Virginia's 18th Senate district is one of 40 districts in the Senate of Virginia. It has been represented by Democrat Louise Lucas since 1992.
District 18 is located in southeastern Virginia, including all of Greensville County, Sussex County, and the City of Emporia, as well as parts of Brunswick County, Isle of Wight County, Southampton County, Surry County, and the cities of Chesapeake, Franklin, Portsmouth, and Suffolk.
The district overlaps with Virginia's 3rd, 4th, and 5th congressional districts, and with the 64th, 75th, 76th, 79th, and 80th districts of the Virginia House of Delegates. It borders the state of North Carolina.
All election results below took place prior to 2011 redistricting, and thus were under different district lines.