Virginia's 40th Senate district is one of 40 districts in the Senate of Virginia.

It has been represented by Republican Todd Pillion since 2020, succeeding retiring fellow Republican Charles William Carrico Sr.[3] It is currently the most Republican-leaning district in the Virginia Senate.

[3] The district is located entirely within Virginia's 9th congressional district, and overlaps with the 1st, 4th, 5th, and 6th districts of the Virginia House of Delegates.

[4] It borders the states of Kentucky, Tennessee, and North Carolina.

[1] All election results below took place prior to 2011 redistricting, and thus were under different district lines.