Mizzou football completed its 2018 signing class. See who the Tigers added below.
| Name | Position | Grade | Hometown/High School | Previous School |
| Gerald Nathan, Jr. | LB | Freshman | Charlotte, N.C. / Zebulon B. Vance | – |
| Khmari Thompson | WR | Freshman | Lawrenceville, Ga. / Central Gwinnett | – |
| Cameron Wilkins | LB | Freshman | Del Valle, Texas / Del Valle | – |
| Daniel Parker | DE | Freshman | Blue Springs, Mo. / Blue Springs | – |
| Simi Bakare | RB | Freshman | Round Rock, Texas / Cedar Ridge | – |
| Harry Ballard III | WR | Sophomore | Florissant, Mo. / McCluer North | Jones County JC |
| Chad Bailey | LB | Freshman | Missouri City, Texas / Ridge Point | – |
| Javon Foster | OL | Freshman | West Bloomfield, Mich. / West Bloomfield | – |
| Kam Scott | WR | Freshman | Manvel, Texas / Manvel HS | – |
| Mike Ruth | OL | Freshman | Coppell, Texas / Coppell | – |
| Danny Gray | WR | Freshman | Dallas, Texas / James Madison HS | – |
| Jalen Knox | RB | Freshman | Mansfield, Texas / Timberview | – |
| Dominic Gicinto | WR | Freshman | Raytown, Mo. / Raytown HS | – |
| Jarvis Ware | DB | Freshman | Apopka, Fla. / Wekiva | – |
| Trajan Jeffcoat | DE | Freshman | Columbia, S.C. / Irmo | – |
| Tyrone Collins | DB | Freshman | Bradenton, Fla. / Braden River | – |
| Antar Thompson | DT | Redshirt Sophomore | St. Louis, Mo. / Maplewood-Richmond Heights | Highland CC |
| Chris Mills | DB | Freshman | Converse, Texas / Judson | – |
| Messiah Swinson | TE | Freshman | Glen Head, N.Y. / Lutheran | – |
| Bobby Lawrence | OL | Freshman | St. Joseph, Mo. / Central | |
| Lindsey Scott, Jr. | QB | Redshirt Sophomore | Zachary, La. / Zachary | East Mississippi CC/LSU |
| Nick Bolton | LB | Freshman | Frisco, Texas / Frisco Lone Star | |
| Xavier Delgado | OL | Freshman | Glendale, Ariz. / Deer Valley | |
| Tyler Badie | RB | Freshman | Memphis, Tenn. / Briarcrest Christian | |
| Jatorian Hansford | DE | Freshman | Forsyth, Ga. / Mary Persons | – |
