Miki Ootani is a Japanese voice actress born on October 17, 1985, in Saitama Prefecture, Japan. She is affiliated with the talent agency IT Kikaku, having previously been associated with Theatre Academy. Her professional skills include basketball, karate, and playing the shinobue, a type of Japanese bamboo flute.

Ootani is known for her versatile vocal abilities, particularly in portraying young and energetic characters. Her career includes a range of roles in anime, video games, and stage productions. One of her most prominent and recurring roles is Takeru Aizawa, the cheerful and kind younger brother in the anime series Squid Girl. She voiced the character in the original television series, its second season Squid Girl Season 2, and multiple original video animations released between 2012 and 2014. Another notable leading role is Zero in the anime series Save Me! Lollipop.

In addition to these, Ootani has built a substantial body of work with various supporting and recurring characters throughout the mid-2000s. Her filmography includes the role of Hana Kurokawa in the long-running series Reborn!. She also contributed multiple voices to the magical girl anime Sugar Sugar Rune, playing characters such as Momoko Sawamura and Margaret. In School Rumble: Second Semester, she voiced Toki Nagayama and Miki Inaba. Other credits include minor roles in series such as Aria The Origination, Mushishi, Ghost Hunt, and We Were There.

Beyond anime, Ootani's career extends to other performance mediums. She has participated in several stage productions, including the Nico Nico Musical Nico Nico Nico in 2011. She also appeared in the tokusatsu series Ultraman Nexus as a TLT female staff member and contributed voice work to video games and drama CDs.