Kish completed his move to Elland Road this afternoon and will take his place in the squad for Saturday's League One game at home to Millwall.
The 33-year-old's arrival has provided much-needed cover in the centre of midfield with Alan Thompson carrying a hamstring strain and Andrew Hughes doubtful for this weekend's match after damaging his groin in the 1-0 victory over Brighton.
Kishishev completed a previous spell on loan at Leeds from Charlton Athletic last season and became a key member of the team which fought to remain in the Championship.
United's relegation ended their plans to recruit him permanently and he moved to Leicester on a two-year deal in June after reaching the end of his contract at The Valley.
But Kishishev has had little involvement during the new reign of Gary Megson at the Walkers Stadium and has been allowed to join Leeds for a month.
The transfer will see him link up with fellow Leicester player Mark De Vries, who is waiting to see whether his own month's loan will be extended after the meeting with Millwall.
The 33-year-old's arrival has provided much-needed cover in the centre of midfield with Alan Thompson carrying a hamstring strain and Andrew Hughes doubtful for this weekend's match after damaging his groin in the 1-0 victory over Brighton.
Kishishev completed a previous spell on loan at Leeds from Charlton Athletic last season and became a key member of the team which fought to remain in the Championship.
United's relegation ended their plans to recruit him permanently and he moved to Leicester on a two-year deal in June after reaching the end of his contract at The Valley.
But Kishishev has had little involvement during the new reign of Gary Megson at the Walkers Stadium and has been allowed to join Leeds for a month.
The transfer will see him link up with fellow Leicester player Mark De Vries, who is waiting to see whether his own month's loan will be extended after the meeting with Millwall.