| Election Name: | 2018 Kentucky House of Representatives election |
| Country: | Kentucky |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2016 Kentucky House of Representatives election |
| Previous Year: | 2016 |
| Next Election: | 2020 Kentucky House of Representatives election |
| Next Year: | 2020 |
| Seats For Election: | All 100 seats in the Kentucky House of Representatives |
| Majority Seats: | 51 |
| Election Date: | November 6, 2018 |
| Leader1: | David Osborne |
| Party1: | Republican Party (United States) |
| Last Election1: | 64 |
| Seats Before1: | 63 |
| Seats1: | 61 |
| Seat Change1: | 2 |
| Leader2: | Rocky Adkins |
| Party2: | Democratic Party (United States) |
| Last Election2: | 36 |
| Seats Before2: | 37 |
| Seats2: | 39 |
| Seat Change2: | 2 |
| Speaker | |
| Before Election: | David Osborne |
| Before Party: | Republican |
| After Election: | David Osborne |
| After Party: | Republican |
The 2018 Kentucky House of Representatives elections were held on November 6, 2018, as part of the biennial United States elections. All 100 of Kentucky's state representatives were up for reelection. In Kentucky, members of the House of Representatives serve two-year terms. Accordingly, they are up for reelection in both presidential and midterm election years.
Democrats, who had long been the dominant party at the state level in Kentucky, held a majority in the state house from 1922 to 2017.[1] In 2016, Republicans made large gains in the chamber, winning a majority of 64 seats. Both parties flipped several seats in 2018, with Republicans grabbing six seats from the Democrats and Democrats taking eight from the Republicans, for a net gain of two Democratic seats. Many of the Democratic gains were in suburban areas, including around Louisville, Lexington, and Owensboro. Republicans made gains in some of Democrats' remaining rural districts, though they significantly underperformed in Appalachian Eastern Kentucky, where Democrats picked up multiple seats.
Several races were decided by extremely narrow margins. Four seats—Districts 13, 27, 91, and 96—were all decided by seven votes or fewer. Republicans ultimately maintained their majority in the chamber, winning 61 seats to the Democrats' 39.
Seats where the margin of victory was under 10%:
| align=center | District 1 • District 2 • District 3 • District 4 • District 5 • District 6 • District 7 • District 8 • District 9 • District 10 • District 11 • District 12 • District 13 • District 14 • District 15 • District 16 • District 17 • District 18 • District 19 • District 20 • District 21 • District 22 • District 23 • District 24 • District 25 • District 26 • District 27 • District 28 • District 29 • District 30 • District 31 • District 32 • District 33 • District 34 • District 35 • District 36 • District 37 • District 38 • District 39 • District 40 • District 41 • District 42 • District 43 • District 44 • District 45 • District 46 • District 47 • District 48 • District 49 • District 50 • District 51 • District 52 • District 53 • District 54 • District 55 • District 56 • District 57 • District 58 • District 59 • District 60 • District 61 • District 62 • District 63 • District 64 • District 65 • District 66 • District 67 • District 68 • District 69 • District 70 • District 71 • District 72 • District 73 • District 74 • District 75 • District 76 • District 77 • District 78 • District 79 • District 80 • District 81 • District 82 • District 83 • District 84 • District 85 • District 86 • District 87 • District 88 • District 89 • District 90 • District 91 • District 92 • District 93 • District 94 • District 95 • District 96 • District 97 • District 98 • District 99 • District 100 |