JKT48 Trainee is term for JKT48 Kenkyuusei. They fill in for absent members in the theater and are promoted to official members of JKT48 to replace graduated members.
Members

- Diani Amalia Ramadhani - 5th Generation (Diani)
- Gabryela Marcelina - 5th Generation (Aby)
Debuted
- Alissa Galliamova - 1st Generation (Team J)
- Ayana Shahab- 1st Generation (Team J)
- Beby Chaesara Anadila - 1st Generation (Team J)
- Cindy Gulla - 1st Generation (Team J)
- Delima Rizky - 1st Generation (Team J)
- Devi Kinal Putri - 1st Generation (Team J)
- Diasta Priswarini - 1st Generation (Team J)
- Frieska Anastasia Laksani - 1st Generation (Team J)
- Gabriela Margareth Warouw - 1st Generation (Team J)
- Ghaida Farisya - 1st Generation (Team J)
- Jessica Vania Widjaja - 1st Generation (Team J)
- Jessica Veranda Tanumihardja - 1st Generation (Team J)
- Melody Nurramdhani Laksani - 1st Generation (Team J)
- Nabilah Ratna Ayu Azalia - 1st Generation (Team J)
- Rena Nozawa - 1st Generation (Team J)
- Rezky Wiranti Dhike - 1st Generation (Team J)
- Rica Leyona - 1st Generation (Team J)
- Sendy Ariani - 1st Generation (Team J)
- Shania Junianatha - 1st Generation (Team J)
- Sonia Natalia - 1st Generation (Team J)
- Sonya Pandarwaman - 1st Generation (Team J)
- Stella Cornelia - 1st Generation (Team J)
- Takajo Aki - 1.5 Generation (Team J)
- Nakagawa Haruka - 1.5 Generation (Team J)
- Alicia Chanzia Ayu Kumaseh - 2nd Generation (Team KIII)
- Cindy Yuvia - 2nd Generation (Team KIII)
- Della Delila - 2nd Generation (Team KIII)
- Dwi Putri Bonita - 2nd Generation (Team KIII)
- Intar Putri Kariina - 2nd Generation (Team KIII)
- Jennifer Hanna - 2nd Generation (Team KIII)
- Lidya Maulida Djuhandar - 2nd Generation (Team KIII)
- Nadila Cindi Wantari - 2nd Generation (Team KIII)
- Natalia - 2nd Generation (Team KIII)
- Noella Sisterina - 2nd Generation (Team KIII)
- Octi Sevpin - 2nd Generation (Team KIII)
- Ratu Vienny Fitrilya - 2nd Generation (Team KIII)
- Riskha Fairunissa - 2nd Generation (Team KIII)
- Rona Anggreani - 2nd Generation (Team KIII)
- Shinta Naomi - 2nd Generation (Team KIII)
- Sinka Juliani - 2nd Generation (Team KIII)
- Thalia - 2nd Generation (Team KIII)
- Viviyona Apriani - 2nd Generation (Team KIII)
- Jennifer Rachel Natasya - 2nd Generation (Team J)
- Thalia Ivanka Elizabeth - 2nd Generation (Team J)
- Dena Siti Rohyati - 2nd Generation (Team J)
- Fakhiryani Shafariyanti - 2nd Generation (Team KIII)
- Novinta Dhini - 2nd Generation (Team KIII)
- Priscillia Sari Dewi - 2nd Generation (Team KIII)
- Saktia Oktapyani - 2nd Generation (Team KIII)
- Chikano Rina - 2.5 Generation (Team KIII)
- Amanda Dwi Arista - 3rd Generation (Team T)
- Andela Yuwono - 3rd Generation (Team T)
- Aninditha Rahma Cahyadi - 3rd Generation (Team T)
- Ayu Safira Oktaviani - 3rd Generation (Team T)
- Chikita Ravenska Mamesah - 3rd Generation (Team T)
- Elaine Hartanto - 3rd Generation (Team T)
- Feni Fitriyanti - 3rd Generation (Team T)
- Fransisca Saraswati Puspa Dewi - 3rd Generation (Team T)
- Maria Genoveva Natalia Desy Purnamasari Gunawan - 3rd Generation (Team T)
- Martha Graciela - 3rd Generation (Team T)
- Michelle Christo Kusnadi - 3rd Generation (Team T)
- Nadhifa Salsabila - 3rd Generation (Team T)
- Ni Made Ayu Vania Aurellia - 3rd Generation (Team T)
- Shani Indira Natio - 3rd Generation (Team T)
- Shania Gracia - 3rd Generation (Team T)
- Syahfira Angela Nurhaliza - 3rd Generation (Team T)
- Sofia Meifaliani - 3rd Generation (Team J)
- Nina Hamidah - 3rd Generation (Team T)
- Stephanie Pricilla Indarto Putri - 3rd Generation (Team T)
- Yansen Indiani - 3rd Generation (Team T)
- Adriani Elisabeth - 4th Generation (Team T)
- Christi - 4th Generation (Team T)
- Cindy Hapsari Maharani Pujiantoro Putri - 4th Generation (Team T)
- Fidly Immanda Azzahra - 4th Generation (Team T)
- Jinan Safa Safira - 4th Generation (Team T)
- Made Devi Ranita Ningtara - 4th Generation (Team T)
- Melati Putri Rahel Sesilia - 4th Generation (Team T)
- Sri Lintang - 4th Generation (Team T)
- Tan Zhi Hui Celine - 4th Generation (Team T)
- Zahra Yuriva Dermawan - 4th Generation (Team T)
- Adhisty Zara - 5th Generation (Team T)
- Elizabeth Gloria Setiawan - 5th Generation (Team T)
- Eve Antoinette Ichwan - 5th Generation (Team T)
- Nurhayati - 5th Generation (Team T)
- Puti Nadhira Azalia - 5th Generation (Team T)
- Regina Angelina - 5th Generation (Team T)
- Ruth Damayanti Sitanggang - 5th Generation (Team T)
- Violeta Burhan - 5th Generation (Team T)
- Citra Ayu Pranajaya Wibrado - 5th Generation (Team T)
- Hasyakyla Utami Kusumawardhani - 5th Generation (Team T)
- Ratu Vienny Fitrilya - 2nd Generation (Team KIII)
Former Research Students
- Siti Gayatri - 1st Generation (2012)
- Intania Pratama Ilham - 1st Generation (2012)
- Allisa Astri - 1st Generation (2012)
- Fahira - 1st Generation (2012)
- Neneng Rosediana - 1st Generation (2012)
- Cleopatra - 1st Generation (2012)
- Althea Callista - 2nd Generation (2013)
- Nurhalima Oktavianti - 2nd Generation (2013)
- Olivia Robberecht - 2nd Generation (2013)
- Annisa Athia - 2nd Generation (2013)
- Dellia Erdita - 2nd Generation (2013)
- Nadhifa Karimah - 2nd Generation (2013)
- Pipit Ananda - 3rd Generation (2014)
- Shaffa Nabila - 3rd Generation (2014)
- Kezia Putri Andinta - 3rd Generation (2014)
- Milenia Christien Glory Goenawan - 3rd Generation (2014)
- Zebi Magnolia Fawwaz - 3rd Generation (2014)
- Anggie Putri Kurniasari - 3rd Generation (2015)
- Rizka Khalila - 3rd Generation (2015)
- Jessica Berliana Ekawardani - 4th Generation (Candidates) (2015)
- Mega Suryani - 4th Generation (Candidates) (2015)
- Alycia Ferryana - 3rd Generation (2016)
- Farina Yogi Devani - 3rd Generation (2016)
- Indah Permata Sari - 3rd Generation (2016)
- Putri Farin Kartika - 3rd Generation (2016)
- Triarona Kusuma - 3rd Generation (2016)
- Anggita Destiana Dewi - 5th Generation (2016)
- Helma Sonya - 5th Generation (2016)
- Rissanda Putri Tuarissa - 5th Generation (2016)
- Chintya Hanindhitakirana Wirawan - 5th Generation (2016)
Stages
- Pajama Drive 「パジャマドライブ」 (JKT48 Kenkyuusei "Pajama Drive") [2012.05.17 - 2012.12.13] and [2014.05.24 - ]
- Boku no Taiyou 「僕の太陽」 (JKT48 Kenkyuusei "Boku no Taiyou"/"Matahari Milikku") [2013.05.17 - 2013.06.25]
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