SD Eibar B

{{Infobox football club

| clubname = Eibar B

| image = Image:SD Eibar logo.svg

| fullname = Sociedad Deportiva Eibar B, S.A.D.

| nickname =

| founded = 1994
2024 {{small|(refounded)}}

| ground = Unbe, Eibar,
Basque Country, Spain

| capacity = 1,000

| chairman = Amaia Gorostiza

| manager = Iñigo Pérez{{cite web|url=https://www.sdeibar.com/noticias/el-filial-del-eibar-inicia-los-entrenamientos-en-la-temporada-de-su-debut-en-segunda-rfef|title=El filial del Eibar inicia los entrenamientos en la temporada de su debut en Segunda RFEF|trans-title=The reserve team of Eibar start training in their debut season in the Segunda RFEF|publisher=SD Eibar|language=es|date=16 July 2024|accessdate=29 July 2024}}

| league = {{Spanish football updater|Eibar B}}

| season = {{Spanish football updater|Eibar B2}}

| position = {{Spanish football updater|Eibar B3}}

| pattern_la1 = _eibar2223H

| pattern_b1 = _eibar2223H

| pattern_ra1 = _eibar2223H

| pattern_sh1 = _eibar2223H

| pattern_so1 =

| leftarm1 = 1C2E6C

| body1 = 1C2E6C

| rightarm1 = 1C2E6C

| shorts1 = 1C2E6C

| socks1 = 1C2E6C

| pattern_la2 = _eibar2223A

| pattern_b2 = _eibar2223A

| pattern_ra2 = _eibar2223A

| pattern_sh2 = _eibar2223A

| pattern_so2 = _eibar2223al

| leftarm2 = FFFFFF

| body2 = FFFFFF

| rightarm2 = FFFFFF

| shorts2 = FFFFFF

| socks2 = FFFFFF

}}

Sociedad Deportiva Eibar B, S.A.D. is a Spanish football team based in Eibar, Gipuzkoa, in the autonomous community of the Basque Country. They are the reserve team of SD Eibar. They play in {{Spanish football updater|Eibar B}}, holding home games at Unbe Facilities, which held 1,000 spectators. Like the first team, they play in azulgrana – claret and blue – with blue shorts.

Founded in 1994 and dissolved in 2012,[http://www.diariovasco.com/v/20120623/bajo-deba/eibar-toma-decision-concluido-20120623.html El Eibar toma la decisión de dar por concluido el papel del filial (Eibar chooses to end role of reserves)]; Diario Vasco, 23 June 2012 {{in lang|es}} the B-team returned to an active status on 26 July 2024, after the affiliation agreement with CD Vitoria ended.{{cite web|url=https://www.sdeibar.com/noticias/la-sd-eibar-y-el-cd-vitoria-dan-por-finalizada-su-relacion-de-filialidadd|title=La SD Eibar y el CD Vitoria dan por finalizada su relación de filialidad|trans-title=SD Eibar and CD Vitoria end their affiliation agreement|publisher=SD Eibar|language=es|date=26 July 2024|accessdate=29 July 2024}}

Former players include Ander Capa, Xabi Irureta, Iban Fagoaga, Ion Ansotegi and Jagoba Arrasate.

The team's final head coach in its first era was Gaizka Garitano,{{cite web|url=http://www.diariovasco.com/20120606/deportes/mas-futbol/gaizka-garitano-nuevo-entrenador-201206061905.html|title=Gaizka Garitano, nuevo entrenador del Eibar|trans-title=Gaizka Garitano, new Eibar manager|newspaper=El Diario Vasco|language=Spanish|date=6 June 2012|accessdate=19 December 2017}} who then took charge of Eibar's first team and led them to the top tier via consecutive promotions.{{cite web|url=http://www.marca.com/2013/06/30/futbol/mas_futbol/1372621872.html|title=El Eibar vuelve a Segunda cuatro años después|trans-title=Eibar return to Segunda four years later|newspaper=Marca|language=Spanish|date=30 June 2013|accessdate=19 December 2017}}{{cite news|url=http://www.marca.com/2014/05/25/futbol/2adivision/1401048890.html|title=Un golazo de Jota Peleteiro lleva al Eibar a Primera división|trans-title=Jota Peleteiro wonder goal takes Eibar to First division|newspaper=Marca|language=Spanish|date=25 May 2014|accessdate=19 December 2017}}