1998 MLS supplemental draft

| Chicago Fire || C.J. Brown || D || San Francisco Bay Seals, San Jose State University

| Tampa Bay Mutiny{{#tag:ref|#2: Miami Fusion → Tampa Bay Mutiny. 20 November 1997: Tampa Bay Mutiny acquired this first-round selection and an allocation from Miami Fusion in exchange for midfielder Carlos Valderrama.|group="R1 trade"}} || Brian Loftin || F || Kansas City Attack, University of Evansville

| San Jose Clash || Tim Weaver || D || Richmond Kickers, University of San Francisco

| Colorado Rapids{{#tag:ref|#4: MetroStars → Colorado Rapids. 10 July 1997: Colorado Rapids acquired this first-round selection and future considerations from MetroStars in exchange for forward Shaun Bartlett.|group="R1 trade"}} || Marquis White || F || San Francisco Bay Seals, University of San Francisco

| New England Revolution || Dahir Mohammed || D || Long Island Rough Riders, C.W. Post College

| D.C. United{{#tag:ref|#6: Los Angeles Galaxy → New England Revolution → D.C. United. Date Needed: D.C. United acquired this first-round pick from New England Revolution in exchange for a third-round selection in the 1998 MLS College Draft. On 10 March 1997, New England had acquired this first-round pick from Los Angeles Galaxy in exchange for forward Wélton. More information needed.|group="R1 trade"}} || Geoff Aunger || D || Seattle Sounders

| Tampa Bay Mutiny || Brad Wilson || M || Orange County Zodiac, Cal State Fullerton

| Kansas City Wizards || Goran Hunjak || M || Washington Warthogs

| D.C. United{{#tag:ref|#9: Columbus Crew → D.C. United. Date Needed: D.C. United acquired this first-round pick from Columbus Crew in exchange for the #12 pick in the 1999 Supplemental Draft.|group="R1 trade"}} || Danny Care || D || Carolina Dynamo, Clemson Tigers

| Dallas Burn || Chris Fox || D || Buffalo Blizzard, Brown University

| Colorado Rapids || Julio Cengarle || M || Maunabo Leones, Montclair State College

| Columbus Crew{{#tag:ref|#12: D.C. United → Columbus Crew. Date Needed: Columbus Crew acquired this first-round pick from D.C. United in exchange for the #9 pick in the 1999 Supplemental Draft.|group="R1 trade"}} || Brandon Ward || M || Richmond Kickers, Indiana University

| Chicago Fire || Don Gramenz || D || Minnesota Thunder, University of Wisconsin–Milwaukee

| MetroStars{{#tag:ref|#14: Miami Fusion → MetroStars. 1 February 1998: MetroStars acquired this second-round selection from Miami Fusion in exchange for a second-round pick (#19) in the 1999 MLS Supplemental Draft.|group="R2 trade"}} || Travis Roy || M || Detroit Rockers, University of Wisconsin–Madison

| San Jose Clash || Kevin Rueda || GK || California Jaguars, Santa Clara University

| Chicago Fire{{#tag:ref|#16: MetroStars → Los Angeles Galaxy → Chicago Fire. Date Needed: Chicago Fire acquired this second-round selection from Los Angeles Galaxy in exchange for a third-round pick (#26) in the 1998 MLS College Draft. On 16 June 1997, Los Angeles had acquired this second-round pick from MetroStars in exchange for defender Mark Semioli.|group="R2 trade"}} || Paul Holocher || M || California Jaguars, Santa Clara University

| New England Revolution || Doug Neely || M || Anaheim Splash, Chapman University

| Los Angeles Galaxy || Cesar Alvarado || M || Valley Golden Eagles, Citrus College

| Tampa Bay Mutiny || Steve Bell || M || Washington Warthogs, Robert Morris University

| Kansas City Wizards || Rodney Rambo || D || Portland Pilots

| Columbus Crew || Scott Cannon || D || Richmond Kickers, University of Evansville

| Dallas Burn || Ernest Inneh || F || Long Island Rough Riders, Brooklyn College

| San Jose Clash{{#tag:ref|#23: Colorado Rapids → San Jose Clash. 8 January 1997: San Jose Clash acquired this second-round pick and defender Dominic Kinnear from Colorado Rapids in exchange for forward Paul Bravo and defender Rafael Amaya.|group="R2 trade"}} || Eddie Soto || F || Pro Beach Soccer Tour, Cal State Fullerton

| Tampa Bay Mutiny{{#tag:ref|#24: D.C. United → Tampa Bay Mutiny. 2 February 1997: Tampa Bay Mutiny acquired this second-round pick and a first-round selection (#10) in the 1997 MLS Supplemental Draft from D.C. United in exchange for the #8 pick in the 1997 Supplemental Draft.|group="R2 trade"}} || John Jones || M/F || Orange County Zodiac, Sacramento State

| Chicago Fire || Paul Lekics || M || Richmond Kickers, Creighton University

| Los Angeles Galaxy{{#tag:ref|#26: Miami Fusion → Los Angeles Galaxy. 1 February 1998: Los Angeles Galaxy acquired this third-round selection from Miami Fusion in exchange for a third-round pick (#34) in the 1999 MLS Supplemental Draft.|group="R3 trade"}} || Amos Magee || F || Minnesota Thunder, Wesleyan University

| San Jose Clash || Alberto Montoya || M || Raleigh Flyers, Santa Clara University

| MetroStars || Sal Leanti || D || Long Island Rough Riders, Fordham University

| New England Revolution || Dave Salzwedel || GK || San Jose Clash, Cal Lutheran

| Los Angeles Galaxy || Marco Ferruzzi || M || Tampa Bay Mutiny, University of North Carolina

| Tampa Bay Mutiny || PASS || ||

| Kansas City Wizards || PASS || ||

| Tampa Bay Mutiny{{#tag:ref|#33: Columbus Crew → Tampa Bay Mutiny. xx February 1997: Tampa Bay Mutiny acquired this third-round pick from Columbus Crew in exchange for a third-round selection (#28) in the 1997 MLS Supplemental Draft.|group="R3 trade"}} || PASS || ||

| Dallas Burn || Darren Sawatzky || M/F || New England Revolution, University of Portland

| Colorado Rapids || Tayt Ianni || M || San Jose Clash, UCLA

| D.C. United || PASS || ||