| Election Name: | 2020 Missouri House of Representatives elections |
| Country: | Missouri |
| Type: | Legislative |
| Ongoing: | No |
| Previous Election: | 2018 Missouri House of Representatives election |
| Previous Year: | 2018 |
| Next Election: | 2022 Missouri House of Representatives election |
| Next Year: | 2022 |
| Seats For Election: | All 163 seats in the Missouri House of Representatives |
| Majority Seats: | 82 |
| Election Date: | November 3, 2020 |
| Leader1: | Elijah Haahr (term-limited) |
| Party1: | Republican Party (United States) |
| Leaders Seat1: | 134th district |
| Seats Before1: | 113 |
| Seat Change1: | 1 |
| Seats After1: | 114 |
| Popular Vote1: | 1,732,426 |
| Percentage1: | 62.65% |
| Leader2: | Crystal Quade |
| Party2: | Democratic Party (United States) |
| Leaders Seat2: | 132nd district |
| Seats Before2: | 48 |
| Seat Change2: | 1 |
| Seats After2: | 49 |
| Popular Vote2: | 1,016,563 |
| Percentage2: | 36.76% |
| Speaker | |
| Before Election: | Elijah Haahr |
| Before Party: | Missouri Republican Party |
| After Election: | Rob Vescovo |
| After Party: | Missouri Republican Party |
The 2020 election for Missouri House of Representatives was held on November 3, 2020.[1] All 163 seats in the state House were up for election in 2020. The primary election was held on August 31, 2020.[2]
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 • District 101 • District 102 • District 103 • District 104 • District 105 • District 106 • District 107 • District 108 • District 109 • District 110 • District 111 • District 112 • District 113 • District 114 • District 115 • District 116 • District 117 • District 118 • District 119 • District 120 • District 121 • District 122 • District 123 • District 124 • District 125 • District 126 • District 127 • District 128 • District 129 • District 130 • District 131 • District 132 • District 133 • District 134 • District 135 • District 136 • District 137 • District 138 • District 139 • District 140 • District 141 • District 142 • District 143 • District 144 • District 145 • District 146 • District 147 • District 148 • District 149 • District 150 • District 151 • District 152 • District 153 • District 154 • District 155 • District 156 • District 156 • District 157 • District 158 • District 159 • District 160 • District 161 • District 162 • District 163 |