Khai Bua Ban

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{{Infobox royalty

| name =Khai Bua Ban

| title =King of Lan Xang

| image =

| caption =

| succession ={{hlist |Monarchs of Lan Xang}}

| reign =1433–1436

| coronation =1433

| predecessor =Lusai

| successor =Kham Keut

| spouse =

| issue =

| dynasty =Khun Lo

| father =

| mother =

| religion =Therevada Buddhism

| birth_name =

| birth_date =

| birth_place =Muang Sua, Lan Xang

| death_date =1436

| death_place =Sop Kham, Lan Xang

| date of burial =

| place of burial =

| regnal name = Samdach Brhat-Anya Chao Kaya Buvanabana

|}}

Khai Bua Ban was a king of Lan Xang, ruling from 1433 until 1436. At the time of his succession, he was governor of Chiengkai. Khai Bua Ban's reign ended after Nang Keo Phimpha ordered his death.{{cn|date=August 2020}}

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{{Succession box | before = Lusai| title = King of Lan Xang|years=1433–1436| after = Kham Keut}}

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