Guildo Horn

{{Use dmy dates|date=December 2019}}

{{expand German|topic=bio|date=February 2023|Guildo Horn}}

{{Infobox musical artist

| name = Guildo Horn

| image = Guildo Horn – Schlagermove 2015 04.jpg

| caption = Horn at Schlagermove in Hamburg, Germany, 2015

| image_size =

| background = solo_singer

| birth_name = Horst Heinz Köhler

| birth_place = Trier, West Germany

| alias =

| birth_date = {{birth date and age|df=y|1963|2|15}}

| death_date =

| instrument =

| genre = Schlager

| occupation = Singer

| years_active =

| label =

| associated_acts =

| website = [https://www.guildo-horn.com/ guildo-horn.com]

| current_members =

}}

Horst Heinz Köhler{{Cite web|date=2017-04-27|title=Zu Besuch bei Guildo Horn {{!}} SWR Krause kommt|url=https://www.youtube.com/watch?v=GXRG9t8L2nk&t=261s|website=YouTube.com|language=de}} (born 15 February 1963), known under his stage name Guildo Horn ({{IPA|de|ˈɡɪldo ˈhɔʁn}}), is a German Schlager singer. He is best known for his eccentric stage persona, which includes outrageous clothes and extroverted antics.

At the Eurovision Song Contest 1998, he came seventh with the song "Guildo hat euch lieb!" ("Guildo loves you!").