Player Commitments
| Name | State | School | Class | Pos. | Commitment |
| Ryan Duffy | MN | South St. Paul | 2017 | LHP | Minnesota |
| Jack Duffy | MO | Staley | 2016 | OF | Missouri State |
| Austin Duffy | AZ | Red Mountain | 2018 | 3B | New Mexico State |
| Logan Duffy | NJ | Manchester Township | 2022 | OF | Old Dominion |
| Vincent Duffy | NY | Nanuet | 2025 | C | Seton Hall |
| Derek Duffy | CT | Farmington HS | 2016 | SS | Franklin Pierce |
| Charles Duffy | FL | St. Petersburg Catholic | 2022 | 3B | Limestone College |
| Dylan Duffy | TX | Bridgeland | 2024 | OF | Centenary (LA) |
| Zach Duffy | WA | Bainbridge | 2022 | LHP | St. John's University (MN |
| Jacob Duffy | IL | Pontiac | 2018 | RHP | Kankakee CC |
| Sean Duffy | NY | Starpoint | 2023 | RHP | Niagara County CC |
| Jack Duffy | FL | Sarasota | 2019 | 1B | Polk State |
| Skyler Duffy | IL | Notre Dame College Prep | 2023 | RHP | Ohlone CC |
| Austin Dufner | MN | Rocori | 2017 | - | St. Cloud Tech & CC |
| Nick Dufoe | IA | Adel Desoto Minburn | 2018 | - | Luther College |
| Quin Dufort | OR | Ida B Wells (Wilson) | 2024 | LHP | Portland |
| Ethan Dufresne | MI | Bay City Central | 2019 | OF | Delta College |
| Will Dugan | TN | Lipscomb Academy | 2022 | RHP | Lipscomb |
| Nick Dugan | CA | St. Bernard's | 2022 | RHP | Stanford |
| Jack Dugan | TN | Lipscomb Academy | 2026 | SS | Tennessee |
| Avery Dugan | IL | Jacksonville | 2018 | C | Olivet Nazarene |
| Gavin Dugas | LA | Houma Christian | 2018 | SS | Louisiana State |
| Dayton Dugas | LA | Sam Houston | 2015 | OF | Wichita State |
| Daniel Dugas | LA | Pearl River | 2017 | SS | Delgado CC |
| Mason Dugas | FL | Ida Baker | 2020 | 2B | Cleveland CC |
| Matt Duggan | NC | Marvin Ridge | 2019 | SS | Gardner-Webb |
| Tyler Duggan | OH | Fairfield | 2012 | - | Ashland |
| Aidan Duggan | IL | Providence Catholic | 2023 | RHP | Cameron University |
| Jack Duggan | ON | Georgetown District | 2023 | 1B | Phoenix JC |
| Ethan Duggan | ON | Holy Trinity Catholic | 2018 | 1B | Laurier University |
| Cameron Duggan | WA | Bonney Lake | 2022 | 2B | Centralia College |
| Cashel Dugger | CO | Valor Christian | 2023 | C | UCLA |
| Drew Dugger | KY | East Jessamine | 2021 | RHP | Cumberlands |
| Carter Duhaime | NC | Piedmont | 2020 | 3B | Belmont Abbey College |
| Brennan Duhe | LA | Lutcher | 2021 | SS | Mississippi Delta CC |
| Braden Duhon | LA | Sam Houston | 2019 | OF | Louisiana Tech |
| Jace Duhon | LA | South Beauregard | 2024 | RHP | Louisiana-Monroe |
| Dustin Duhon | LA | Sam Houston | 2015 | C | McNeese State |
| Ethan Duhon | AL | Hewitt Trussville | 2022 | OF | Huntingdon College |
| Darian Duhon | LA | North Vermilion | 2020 | OF | Millsaps College |
| Hunter Duhon | LA | St Thomas More | 2019 | SS | LSU-Eunice JC |
| Josh Duimstra | VA | Deep Run | 2016 | SS | Hampden-Sydney College |
| Caleb Duinink | IA | PCM | 2021 | - | Iowa Central CC |
| Thomas Dukart | OR | Lake Oswego | 2020 | OF | Oregon State |
| Jacob Dukate | OH | St. John's Jesuit | 2023 | RHP | Eastern Michigan |
| Tristan Duke | TX | Flower Mound | 2022 | 1B | Houston |
| Hayden Duke | MA | Bishop Stang | 2021 | LHP | Massachusetts-Lowell |
| Caden Duke | CA | Millennium | 2021 | RHP | San Jose State |
| Jackson Duke | TX | South Grand Prairie | 2020 | C | Southern Arkansas |
| Shane Duke | AL | Madison Academy | 2025 | 1B | Tampa |
| Tucker Duke | TN | Giles County | 2018 | RHP | Huntingdon College |
| Troy Duke | OH | North Ridgeville | 2023 | C | Mount Union |
| Zach Duke | IL | Riverdale | 2022 | 2B | Rockford College |
| Jack Duke | KS | Blue Valley Northwest | 2016 | C | Cowley County CC |
| Mitch Duke | TN | CreekWood | 2020 | C | Southwest Tennessee CC |
| Sean Duke | NY | Rhinebeck | 2022 | RHP | Sullivan County CC |
| Dylan Duke | PA | Springside Chestnut Hill | 2023 | LHP | St. Joseph's |
| Justin Dukes | FL | McArthur | 2022 | OF | Florida A&M |
| Ben Dukes | TX | Houston Memorial | 2020 | C | Rice |
| Johnthan Dukes | KY | Muhlenberg County | 2015 | RHP | St. Catharine College |
| Elijah Dukes | FL | Wharton | 2022 | 1B | San Jacinto JC |
| Andrew Dukesherer | MI | Grandville | 2021 | 1B | Muskegon CC |
| Ryan Dula | NC | Porter Ridge | 2017 | LHP | Wingate University |
| Carsen Dulak | WI | Germantown | 2024 | OF | Bryant & Stratton (WI) |
| Paul Dulanto | NY | Massapequa | 2024 | C | Stony Brook |
| Ansen Dulas | MN | Watertown-Mayer | 2020 | RHP | Southwest Minnesota State |
| Jackson Dulay | WA | Kentwood | 2024 | OF | Bellevue College |
| Brett Dulecki | MI | Huron Renton Junior High School | 2020 | SS | Lawrence Tech |
| Nate Dulevitz | VA | Highland School | 2022 | 2B | Mary Washington |
| Daniel Duley | MI | Freeland | 2024 | LHP | Oakland |
| Mark Duley | KS | Riverton | 2017 | OF | Hutchinson CC |
| Alex Duley | MI | Freeland | 2022 | RHP | Mid Michigan CC |
| Cooper Dulich | CA | La Costa Canyon | 2021 | SS | Montana State-Billings |
| Caden Dulin | NJ | Williamstown | 2022 | SS | Bryant |
| Mitchell Dulin | OH | Clear Fork Valley | 2019 | RHP | Cuyahoga CC |
| Erik Dulittle | NV | Spring Valley HS | 2019 | RHP | Mesa CC |
| Erik Dulittle | NV | Spring Valley | 2019 | 3B | Mesa CC |
| Spencer Dull | IN | Hamilton Heights | 2013 | C | Miami (OH) |
| Phillip Dull | PA | Chestnut Ridge | 2018 | SS | West Virginia |
| AJ Dull | IN | South Adams | 2022 | C | Indiana Tech |
| James Dulle | MO | Rockhurst | 2024 | RHP | William Jewell |
| Payton Dulski | FL | Calvary Christian High School | 2024 | C | New College of Florida |
| Ben Dum | PA | West Perry | 2015 | RHP | VCU |
| Adrien Dumas | IL | Lyons Township | 2020 | SS | Benedictine (IL) |
| Alec Dumas | NC | Panther Creek | 2017 | SS | Brunswick CC |
| Al Dumas | MS | Eupora | 2018 | OF | East Central CC |
| Matthew Dumas | FL | Columbia | 2023 | OF | Hillsborough CC |
| Brandon Dumas | FL | Orange Park | 2018 | RHP | Abraham Baldwin JC |
| Nicholas David Dumesnil | CA | Huntington Beach | 2022 | OF | Cal Baptist |
| Titus Dumitru | OR | Sam Barlow | 2021 | 1B | Linn-Benton CC |
| Charlie Dumo | IL | Deerfield | 2023 | OF | Davenport University |
| Benjamin Dumonceaux | MN | Becker | 2022 | - | Hamline University |
| Jack DuMont | MO | St. Louis University | 2022 | LHP | St. Louis |
| Andrew DuMont | MO | St. Louis University | 2024 | RHP | Tennessee |
| Evan Dumont | PA | West Chester Rustin | 2017 | C | Washington College (MD) |
| Kannon Dumont | NE | Bennington | 2021 | C | Mount Marty |
| Kael Dumont | NE | Millard West | 2021 | RHP | Barton CC |
| Christian Dumont | NE | Bellevue West | 2016 | 2B | Southeast CC |
| Sam Dumper | ON | Royal St. Georges | 2020 | RHP | Bard College |
| Marco Dumsky | MO | Rockhurst | 2023 | RHP | Dartmouth |