"O What a King" is a song by American contemporary Christian music singer Katy Nichole, released on October 21, 2022, as a standalone single.

[3] "O What a King" is composed in the key of C with a tempo of 73 beats per minute and a musical time signature of 44.

[4] "O What a King" made its debut at number 40 on the US Christian Airplay chart dated December 3, 2022.

[3] Katy Nichole released the official lyric video of "O What a King" through her YouTube channel on October 21, 2022.

[8] Worship Together published the acoustic performance video of "O What a King" via YouTube on December 7, 2022.