Player Draft
| Name | State | School | Class | Pos. | Year | Round | Team |
| Nicholas Judice | LA | Catholic(BR) | 2019 | RHP | 2023 | 8 | Yankees |
| Hayden Juenger | IL | O'Fallon | 2018 | RHP | 2021 | 6 | Toronto Blue Jays |
| Gage Jump | CA | JSerra | 2021 | LHP | 2024 | CB-B | Athletics |
| Jace Jung | TX | MacArthur | 2019 | 2B | 2022 | 1 | Tigers |
| Evan Justice | VA | Collegiate School | 2017 | LHP | 2021 | 5 | Rockies |
| Anthony Justiniano | IL | Clemente | 2014 | SS | 2014 | 38 | White Sox |
| Francisco Justo | NY | James Monroe | 2016 | RHP | 2018 | 12th | St. Louis Cardinals |
| Andrew Kachel | CA | Christopher | 2019 | SS | 2022 | 16 | Giants |
| Kevin Kaczmarski | IL | Prarie Ridge | 2010 | OF | 2015 | 9 | Mets |
| Connor Kaiser | KS | Blue Valley West | 2015 | SS | 2018 | 3 | Pirates |
| Brian Kalmer | AZ | Corona del Sol | 2019 | SS | 2023 | 18 | Cubs |
| Jace Kaminska | KS | Caney Valley | 2020 | RHP | 2023 | 10 | Rockies |
| Scott Kapers | IL | Mount Carmel | 2015 | C | 2018 | 17 | Rangers |
| Braden Kapteyn | IL | Illiana Christian | 2008 | 3B | 2011 | 15 | Red Sox |
| Nathan Karaffa | OH | Toronto | 2019 | SS | 2022 | 20 | Phillies |
| Ricky Karcher | MI | Saline | 2015 | RHP | 2017 | 13 | Reds |
| James Karinchak | NY | Valley Central | 2014 | - | 2017 | 9 | Indians |
| Kyle Karros | CA | Mira Costa | 2020 | 3B | 2023 | 5 | Rockies |
| Jared Karros | CA | Mira Costa | 2019 | RHP | 2022 | 16 | Dodgers |
| Ryan Karstetter | FL | IMG Academy | 2015 | 3B | 2017 | 19 | Tigers |
| Joshua Kasevich | CA | Palo Alto | 2019 | SS | 2022 | 2 | Blue Jays |
| Wes Kath | AZ | Desert Mountain | 2021 | 3B | 2021 | 2 | Chicago White Sox |
| Nikolos Kavadas | IN | Penn | 2017 | 1B | 2021 | 11 | Red Sox |
| Brett Kay | IL | St. Viator | 2009 | SS | 2013 | 20 | Giants |
| CJ Kayfus | FL | Palm Beach Central | 2020 | OF | 2023 | 3 | Guardians |
| Sebastian Keane | MA | North Andover | 2019 | RHP | 2022 | 18 | Yankees |
| Luke Keaschall | CA | Aptos | 2020 | 2B | 2023 | 2 | Twins |
| Sam Keating | FL | Canterbury | 2017 | RHP | 2017 | 4 | Padres |
| Andrew Keck | MO | Vianney | 2018 | C | 2022 | 10 | Braves |
| Dominic Keegan | MA | Central Catholic | 2018 | 1B | 2022 | 4 | Rays |
| Tyler Keenan | NC | Cleveland | 2017 | 3B | 2020 | 4 | Seattle Mariners |
| Seth Keener | NC | East Surry | 2020 | RHP | 2023 | 3 | White Sox |
| Janzen Keisel | UT | Gunnison Valley | 2021 | RHP | 2024 | 6 | Rays |
| Colten Keith | MS | Biloxi | 2020 | SS | 2020 | 5 | Tigers |
| Jarred Kelenic | WI | Waukesha West | 2018 | OF | 2018 | 1 | Mets |
| Mitch Keller | IA | Xavier | 2014 | RHP | 2014 | 2 | Pirates |
| Brian Keller | WI | Germantown | 2012 | RHP | 2016 | 39 | Yankees |
| Seth Keller | VA | Hanover | 2022 | SS | 2022 | 6 | Braves |
| Jackson Kelley | GA | The Walker | 2018 | RHP | 2022 | 12 | Rangers |
| Owen Kellington | VT | U32 | 2021 | RHP | 2021 | 4 | Pittsburgh Pirates |
| Kevin Kelly | VA | Paul VI | 2016 | RHP | 2019 | 19th | Indians |
| Antoine Kelly | IL | Maine East | 2018 | LHP | 2019 | 2 | Brewers |
| Riley Kelly | CA | Tustin | 2022 | RHP | 2022 | 20 | Diamondbacks |
| Jake Kelzer | IN | Bloomington South | 2012 | RHP | 2016 | 18 | Phillies |
| Kannon Kemp | TX | Weatherford | 2023 | RHP | 2023 | 8 | Padres |
| William Kempner | CA | Valley Christian | 2019 | RHP | 2022 | 3 | Giants |
| Jeren Kendall | WI | Holmen | 2014 | OF | 2017 | 1 | Dodgers |
| Kevin Kendall | CA | La Mirada | 2017 | SS | 2021 | 7 | NYM |
| Caden Kendle | CA | Edison | 2020 | OF | 2024 | 5 | Twins |
| Kolton Kendrick | LA | Oak Forest | 2015 | 1B | 2015 | 8 | Twins |
| Dalton Kendrick | MS | Hernando | 2019 | LHP | 2023 | 18 | Angels |
| Buddy Kennedy | NJ | Millville | 2017 | 3B | 2017 | 5 | Arizona Diamondbacks |
| Michael Kennedy | NY | Troy | 2022 | LHP | 2022 | 4 | Pirates |
| Tyler Kennedy | GA | Georgia Premier Academy | 2021 | RHP | 2023 | 19 | Pirates |
| Tyler Kent | OH | Grove City | 2012 | OF | 2016 | 26 | Phillies |
| Zachary Kent | VA | Northumberland | 2016 | RHP | 2019 | 9th | Rangers |
| Nic Kent | VA | St. Anne's Belfield | 2018 | SS | 2021 | 11 | Rockies |
| Jackson Kent | IL | Lake Park | 2021 | LHP | 2024 | 4 | Nationals |
| Barrett Kent | TX | Pottsboro | 2023 | RHP | 2023 | 8 | Angels |
| Orion Kerkering | FL | Venice | 2019 | RHP | 2022 | 5 | Phillies |
| Kade Kern | OH | Archbold | 2020 | OF | 2023 | 17 | Braves |
| Grae Kessinger | MS | Oxford | 2016 | SS | 2019 | 2 | Astros |
| Caleb Ketchup | GA | Holy Innocents' Episcopal | 2020 | SS | 2023 | 15 | Angels |
| Clayton Keyes | AB | Okotoks Dawgs Academy | 2017 | OF | 2017 | 15 | Diamondbacks |
| Sean Keys | NY | Harborfields | 2021 | 3B | 2024 | 4 | Blue Jays |
| Robby Kidwell | MD | Chopticon | 2015 | C | 2017 | 36 | Mets |
| Gavin Kilen | WI | Milton | 2022 | SS | 2022 | 13 | Red Sox |
| Keylan Killgore | KS | Wichita Heights | 2015 | LHP | 2018 | 17 | Phillies |
| Kevin Kilpatrick | GA | Redan | 2019 | OF | 2022 | 17 | Braves |
| Corey Kimes | IL | Ottawa | 2008 | LHP | 2011 | 18 | Twins |
| Will Kincanon | IL | Riverside-Brookfield | 2014 | RHP | 2017 | 11 | White Sox |
| Alex King | KS | Saint James Academy | 2014 | SS | 2018 | 35 | Diamondbacks |
| Lamar King | MD | Calvert Hall | 2022 | C | 2022 | 4 | Padres |
| Joseph King | CA | Woodside | 2019 | RHP | 2022 | 9 | Cardinals |
| William King | FL | IMG Academy | 2021 | C | 2023 | 20 | Braves |
| Johnny King | FL | Naples | 2024 | LHP | 2024 | 3 | Blue Jays |
| Seaver King | GA | Athens Christian | 2021 | SS | 2024 | 1 | Nationals |
| Jimmy Kingsbury | PA | Malvern Prep | 2017 | RHP | 2021 | 17 | Mariners |
| Brett Kinneman | PA | West York | 2015 | OF | 2018 | 7 | Pirates |
| Cooper Kinney | TN | Baylor | 2021 | 3B | 2021 | Comp Balance A | Tampa Bay Rays |
| George Kirby | NY | Rye | 2016 | RHP | 2019 | 1 | Mariners |
| Michael Kirian | OH | New Riegel | 2017 | LHP | 2021 | 6 | Washington Nationals |
| Alex Kirilloff | PA | Plum | 2016 | OF | 2016 | 1 | Twins |
| Trevor Kirk | NC | North Raleigh Christian Academy | 2019 | RHP | 2022 | 20 | Yankees |
| Cole Kirschsieper | IL | Lincoln-Way East | 2019 | LHP | 2022 | 12 | Marlins |
| Brady Kirtner | VA | Christiansburg | 2020 | RHP | 2023 | 12 | Mets |
| George Klassen | WI | Port Washington | 2020 | RHP | 2023 | 6 | Phillies |
| Blake Klassen | CA | JSerra | 2019 | 1B | 2022 | 17 | Nationals |
| Will Klein | IN | Bloomington North | 2017 | RHP | 2020 | 5 | Royals |
| Ben Klimesh | IL | New Trier | 2008 | RHP | 2012 | 15 | Reds |
| Jacob Kmatz | NM | Sandia | 2021 | RHP | 2024 | 5 | Rays |
| Landon Knack | TN | Science Hill | 2015 | RHP | 2020 | 2nd | Los Angeles Dodgers |
| Christian Knapczyk | IL | Joliet Catholic | 2020 | SS | 2023 | 5 | Guardians |
| Reiss Knehr | NY | St. Dominic | 2015 | SS | 2018 | 20th | San Diego Padres |
| Bill Knight | GA | Burke County | 2018 | SS | 2022 | 10 | Mariners |
| Grant Knipp | KY | Louisville Male | 2020 | C | 2024 | 6 | Mariners |
| Michael Knorr | CA | Carlsbad | 2018 | RHP | 2022 | 3 | Astros |
| Josh Knoth | NY | Patchogue Medford | 2023 | RHP | 2023 | 1 - CBA | Milwaukee Brewers |
| Nathan Knowles | VA | Yorktown | 2021 | RHP | 2024 | 4 | Rays |
| Sam Knowlton | AL | Corner | 2018 | RHP | 2023 | 12 | Diamondbacks |