Hiyori Tamura (田村ひより, Tamura Hiyori) is a schoolmate that appears along with the main cast of Lucky Star. She is a first-year student in the same class as Yutaka Kobayakawa, Minami Iwasaki and Patricia Martin.
Hiyori tends to be a kindhearted person, but can have unfortunate luck. She has a friendly personality, but is prone to becoming bashful and clumsy, leading to simple mistakes during a decisive moment. She is a member of the Animation Club, and is Kō's junior. She also seems to be unlucky with animals since the normally timid dog of Minami, Cherry, is apparently hostile to her.
Hiyori Tamura is also an amateur dōjin artist. Hiyori is always searching for a good plot to use in her dōjinshi, and tends to imagine Yutaka and Minami in romantic moments, only to grow embarrassed over the idea and break into an emotional outburst, which leaves Yutaka and Minami clueless. Even if she has a moment of enlightenment, she fails to jot down notes about it, which causes her to forget what her great idea was about.
She is also a self proclaimed pervert, due to her drawing her friends in romantic situations, which often leads to her emotional outbursts.
In Let's Go to the Festival, Hiyori appears in the background for a split second during the scene where two creators attempt to sell their dōjinshi to Konata at Comiket. Hiyori is not fully introduced until To Each Her Own, and does not interact with Konata until Delicate Line.
In To Be Decided, Hiyori's class cultural festival project is a Zuka café featuring Yutaka and a cross-dressed Minami as waitresses. Hiyori also supplies the outfits for the main cast's cheerleading opening act, which were chosen by her brother, allegedly a big fan of cheerleaders.
She has a small "mini-series", "Hiyori Tamura's Human Files" that runs through half of manga volume 4. The pages, each detailing a different Lucky Star character, give many technical descriptions such as birthdays, blood types, and "Bust-Sizes." In Volume 9 she runs another "mini-series" similar to the Human Files called "Secret Notes".
Character song volume 007 contains 2 songs by Hiyori's voice actor, Kaori Shimizu. The songs are:
- Mo, Mousou Machine (De, Delusion Machine)
- Deforuto Joshikōsei Nyan (Default Female High School Student Meow)
|Konata Izumi - Tsukasa Hiiragi - Miyuki Takara - Kagami Hiiragi - Ayano Minegishi - Misao Kusakabe - Yutaka Kobayakawa - Minami Iwasaki - Hiyori Tamura - Patricia Martin - List of Characters|
|Sōjirō Izumi - Kanata Izumi - Yui Narumi - Tadao Hiiragi - Miki Hiiragi - Matsuri Hiiragi - Inori Hiiragi - Yukari Takara - Honoka Iwasaki - Nanako Kuroi - Hikaru Sakuraba - Hinata Miyakawa - Hikage Miyakawa - Akira Kogami|
|Goldy - Cherry|
|Anime Only Characters|
|Minoru Shiraishi - Meito Anizawa - Daisuke Ono - Gotouza|
|Manga Only Characters|
|Kō Yasaka - Yamato Nagamori - Izumi Wakase - Fuyuki Amahara - Tamaki Yamanobe - Miku Busujima|