Shir-Zad of Ghazna

{{Short description|Ghaznavid sultan from 1115 to 1116}}

{{Infobox royalty

| name = Shir-Zad
{{lang|fa|شیرزاد}}

| title = Adud al-Dawla

| image =

| caption =

| succession = Sultan of the Ghaznavid Empire

| birth_date = ?

| birth_place = Ghaznavid Empire

| death_date = {{C.|1116}}

| death_place = Ghaznavid Empire

| place of burial =

| father = Mas'ud III

| mother =

| spouse =

| issue =

| full name = Shir-Zad bin Mas'ūd

| reign = March 1115 – February 1116

| predecessor = Mas'ud III

| successor = Arslan-Shah

| religion = Sunni Islam

| dynasty = Ghaznavid

}}

Adud al-Dawla Shir-Zad ({{langx|fa|عضدالدوله شیرزاد}}), better known as Shir-Zad ({{lang|fa|شیرزاد}}) was the sultan of the Ghaznavid Empire from 1115 to 1116. A son of Mas'ud III ({{reign|1099|1115}}), Shir-Zad served as a governor in India during his father's reign. The deputy governor of Shir-Zad was Qiwam al-Mulk Nizam al-Din. During his governorship, Shir-Zad became very close friends with the Persian poet Masud Sa'd Salman, who had recently been released from his imprisonment at Nay.{{sfn|Bosworth|1977|p=67}} In one of his poems, Masud Sa'd Salman makes mention of a certain Amir Kaykavus at Shir-Zad's court in the city of Lahore, which may have been the Ziyarid ruler and author of the Qabus-Nama, Kaykavus.{{sfn|de Bruijn|2000}}

It was probably at his accession that Shir-Zad adopted the laqab (honorific epithet) of Kamal al-Daula. He ruled for one year, until he was overthrown by his brother Arslan-Shah in February 1116. Shir-Zad fled to the Caspian lands, where he received shelter by the ispahbad (ruler) of the local Bavand dynasty of Tabaristan. With the help of the ispahbad, Shir-Zad made a pilgrimage to Mecca in April–May. After his return, Shir-Zad attempted to regain the throne from his brother, but was killed by the latter.{{sfn|Bosworth|1977|p=90}}

No coins of Shir-Zad are known, which implies he did not rule long enough to have them minted, or none minted by him have been found yet.{{sfn|Bosworth|1977|p=3}}