As you know, there are a few people in Haikyuu and KnB with similar names. I wanted to list them out so it's not as confusing. (Some of these were also at the start of 2.4 Center Ace)
(This might be good to look through, especially since Ai uses first names for first-years and second-years. Feel free to just skim through these!)
These are all Last name, First name
(Let me know if things like this are useful!)
...
•Bokuto Kōtarō 木兎光太郎 (Fukurōdani) &
Hayama Kotarō 葉山小太郎 (Rakuzan)
——
•Akashi Seijuro 赤司征十郎 (Rakuzan) &
Akaashi Keiji 赤葦京治 (Fukurōdani) &
(Akatsuki Ai 暁愛 (Karasuno) )
——
• Ikejiri Hayato 池尻隼人 (Tokonami) &
Yamagata Hayato 山形隼人 (Shiratorizawa)
——
• Okamura Kenichi 岡村建一 (Yōsen) &
Fukui Kensuke 福井健介 (Yōsen) &
Seto Kentarō 瀬戸健太郎 (Kirisaki Daiichi) &
Kyōtani Kentarō 京谷賢太郎 (Seijoh) &
Shirabu Kenjirō 白布賢二郎 (Shiratorizawa) &
Futakuchi Kenji 二口堅治 (Date Tech) &
Koganegawa Kanji 黄金川貫至 (Date Tech)
• Tsukishima Kei 月島蛍 (Karasuno) &
Akaashi Keiji 赤葦京治 (Fukurōdani) &
Ukai Keishin 烏養繋心 (Karasuno) &
Ukai Ikkei 烏養一繋 (former Karasuno)
——
• Kuroo Tetsurō 黒尾鉄朗 (Nekoma) &
Kuroko Tetsuya 黒子テツヤ (Seirin) &
Himuro Tatsuya 氷室辰也 (Yōsen)
——
• Hiroo Kōji 広尾倖児 (Nohebi) &
Kobori Kōji 小堀浩志 (Kaijō) &
Sekimukai Kōji 関向幸治 (former Yukigaoka)
——
• Mibuchi Reo 実渕玲央 (Rakuzan) &
Ōhira Reon 大平獅音 (Shiratorizawa)
• Sakusa Kiyoomi 佐久早聖臣 (Itachiyama) &
Ōmi Tarō 大見太郎 (Inarizaki's coach) &
Ōmimi Ren 大耳練 (Inarizaki) &
Ojiro Aran 尾白アラン (Inarizaki)
——
• Wakamatsu Kōsuke 若松孝輔 (Tōō) &
Sakunami Kōsuke 作並浩輔 (Date Tech) &
Sakurai Ryō 桜井良 (Tōō) &
Kise Ryōta 黄瀬涼太 (Kaijō)
——
• Miya Osamu 宮治 (Inarizaki) &
Watari Shinji 渡親治 (Seijoh) &
Koganei Shinji 小金井真司 (Seirin) &
Midorima Shintarō 緑間真太郎 (Shūtoku)
——
• Nebuya Eikichi 根武谷永吉 (Rakuzan) &
Chigaya Eikichi 千鹿谷英吉 (Shinzen)
——
• Yamamoto Taketora 山本猛虎 (Nekoma) &
Aida Kagetora 相田景虎 (Seirin) &
Kageyama Tobio 影山飛雄 (Karasuno)
——
• Hinata Shōyō 日向翔陽 (Karasuno) &
Hyūga Jyunpei 日向順平 (Seirin)
——
• Fukunaga Shōhei 福永招平 (Nekoma) &
Imayoshi Shōichi 今吉翔一 (Tōō)
——
• Mitobe Rinnosuke 水戸部凛之助 (Seirin) &
Suna Rintarō 角名倫太郎 (Inarizaki)
——
• Kita Shinsuke 北信介 (Inarizaki) &
Kimura Shinsuke 木村信介 (Shūtoku)
——
•Kiyoshi Teppei 木吉鉄平 (Seirin) &
Miyaji Kiyoshi 宮地清志 (Shūtoku)
——
• Akagi Michinari 赤城道成 (Inarizaki) &
Takao Kazunari 高尾和成 (Shūtoku) &
Narita Kazuhito 成田一仁 (Karasuno)
——
• Iwamura Tsutomu 岩村努 (Seihō) &
Goshiki Tsutomu 五色工 (Shiratorizawa)
——
• Bobata Kazuma 母畑和馬 (Johzenji) &
Numai Kazuma 沼井和馬 (Nohebi)
——
• Nekoma 音駒 &
Nekomata Yasufumi 猫又育史 (Nekoma)
——
• Kuguri Naoyasu 潜尚保 (Nohebi) &
Naoi Manabu 直井学 (Nekoma)
——
• Ogano Daiki 小鹿野大樹 (Shinzen) &
Aomine Daiki 青峰大輝 (Tōō)
——
• Akimiya Noboru 秋山昇 (Ohgi Minami) &
Tsukishima Akiteru 月島明光 (former Karasuno)
——
•Nakashima Takeru 中島猛 (Wakunan) &
Oikawa Takeru 及川猛 (Seijoh)
——
•Washio Tatsuki 鷲尾辰生 (Fukurōdani) &
Washijō Tanji 鷲匠鍛治 (Shiratorizawa)
——
• Akakura Kai 赤倉櫂 (Shiratorizawa) &
Kai Nobuyuki 海信行 (Nekoma)
.
.
.
I know it's like a tedious game of spot-the-difference, but I guess this is a good place to start getting to know some names.
Foreign languages are hard. :(
I still struggle with kanji too, even though I grew up with it.
Please comment if there is anyone I missed!
(I am planning on posting a list of names in kanji and their meanings in the future, too.)
Thanks for your attention!