Ko e fasi ʻo e tuʻi ʻo e ʻOtu Tonga

{{Short description|National anthem of Tonga}}

{{Infobox anthem

| title = {{lang|to|italic=no|Ko e fasi ʻo e tuʻi ʻo e ʻOtu Tonga}}

| english_title = Song of the King of the Tongan Islands

| alt_title = {{lang|to|italic=no|Fasi fakafonua}}

| en_alt_title = National Song

| alt_title_2 = {{lang|to|italic=no|Ko e fasi ʻo e kuini ʻo e ʻOtu Tonga}}
(when the monarch is female)

| en_alt_title_2 = Song of the Queen of the Tongan Islands

| image = Fasi fakafonua.png

| image_size =

| caption =

| prefix = National

| country = Tonga

| author = Uelingatoni Ngū Tupoumalohi

| lyrics_date =

| composer = Carl Gustav Schmitt

| music_date =

| adopted = 1874

| until =

| sound = Fasifakafonua.ogg

| sound_title = A cappella choral vocal recording (1961)

}}

"{{lang|to|italic=no|Ko e fasi {{okina}}o e tu{{okina}}i {{okina}}o e {{okina}}Otu Tonga}}" ({{IPA|to|ko e fasi ʔo e tuʔi ʔo e ʔotu toŋa|pron}}; alternatively "{{lang|to|italic=no|Ko e fasi {{okina}}o e kuini {{okina}}o e {{okina}}Otu Tonga}}" when the Tongan monarch is female) is the national anthem of Tonga. The title literally means "song of the king of the Tonga Islands" or "song of the queen of the Tonga Islands" (when the monarch is female) in the Tongan language but is in daily life better known as "{{lang|to|italic=no|Fasi fakafonua}}", which translates to "National Song". The lyrics of the anthem were written by Tongan Prince Uelingatoni Ngū Tupoumalohi, with the music by German-born New Zealand composer Carl Gustav Schmitt. It was first used in 1874.