Indrek Sei

{{Short description|Estonian swimmer}}

{{More footnotes|date=January 2022}}

{{Infobox swimmer|

| name=Indrek Sei

| image=

| imagesize= 150px

| caption =

| fullname = Indrek Sei

| nicknames =

| nationality = {{EST}}

| strokes = Freestyle

| club = Kalev Tallinn

| collegeteam =

| birth_date = {{Birth date and age|1972|7|26|df=yes}}

| birth_place = Tallinn, Estonia

| death_date =

| death_place =

| height = {{convert|1.88|m|ftin|abbr=on}}

| weight = {{convert|80|kg|lb|0|abbr=on}}

| medaltemplates=

{{MedalSport | Men's Swimming}}

{{MedalCompetition|European Championships (SC)}}

{{MedalSilver|1993 Gateshead|100m Medley}}

{{MedalSilver|2000 Valencia|100m Medley}}

{{MedalBronze|1991 Gelsenkirchen|100m Medley}}

{{MedalBronze|1992 Espoo|100m Medley}}

}}

Indrek Sei (born 26 July 1972 in Tallinn) is a former freestyle swimmer from Estonia. He competed in three consecutive Summer Olympics for his native country, starting in 1992.

Sei won the bronze medal in the 100m Individual Medley at the European Sprint Swimming Championships 1991 in Gelsenkirchen. A year later in Espoo, Sei repeated that feat.