Trivia #1: Kushina's name was possibly inspired by the mythological Kushinada-hime (櫛名田比売), Susanoo's wife. When she was about to be devoured by the serpent Yamata no Orochi, Kushinada-hime was saved by Susanoo in exchange for becoming his wife. Susanoo transformed the girl into a comb and placed her in his hair, then defeated the serpent. He afterwards built a palace in Izumo where he married her.

Trivia #2: As Kushina was nicknamed after a red pepper, and Minato was famed as the "Yellow Flash", Naruto's appropriate self-styled title of "Orange Hokage" refers to the fact that the colour orange is a mixture of both red and yellow.

Trivia #3: On the cover of Naruto chapter 503, Kushina's hair resembles Kurama's tails.

Trivia #4: She is one of only three jinchūriki known to have survived the extraction of a tailed beast, along with Hagoromo Ōtsutsuki and Obito Uchiha. This was due to her clan's vitality to which she inherited.

Trivia #5: Kushina mentions that her hair became her own "red thread of fate". The red string of fate, also referred to as the 'red thread of destiny', 'red thread of fate', and other variants, is an East Asian belief originating from Chinese legend and is also used in Japanese legend. According to this myth, the gods tie an invisible red string around the ankles of men and women who are destined to be soul mates and will one day marry each other. Often, in Japanese culture, it is thought to be tied around the little finger. The two people connected by the red thread are destined lovers, regardless of time, place or circumstances. This magical cord may stretch or tangle, but never break. This myth is similar to the Western concept of soul-mates or a twin flame.

Trivia #6: In the Naruto character popularity polls, Kushina was ranked as the 21st most popular character in the 7th.

Trivia #7: Kushina And Minato
Kushina's début in the anime with different hair and eye colour.

Trivia #8: When first introduced in the anime, her eyes were depicted as violet-blue in colour and her hair was portrayed as a deep plum colour. This was corrected however, in subsequent episodes. However, in Naruto Shippūden: Ultimate Ninja Storm Generations, both her first and second appearances were shown in Naruto and Minato's stories respectively.

Trivia #9: Kushina and Minato died the same day Naruto was born, which was October 10.

Trivia #10: Jiraiya's recollection of Kushina while she was pregnant appeared during the end credits of the movie Naruto Shippūden 4: The Lost Tower.

According to the databook(s):

Kushina's hobbies were pulling pranks and chatting.

Kushina's favourite food was salt ramen, while she disliked coffee and anything bitter.

Kushina didn't want to fight anyone in particular.

Kushina's favourite phrase was "Don't give up until the very end" (最後まで諦めない, Saigo made akiramenai).

Kushina was presumably a good cook, as Minato preferred her cooking the most.