'''メカニコング'''は、映画『キングコングの逆襲』に登場した架空のロボット怪獣。

キングコングの能力を調べ上げたドクター・フーが作り上げた巨大ロボット。ゴリラ型のシルエットを持つ全身が銀色の金属性ロボットである。本来の用途はエレメントXという鉱石を採掘するためのもので、戦闘用ではない。

1体目はエレメントXの鉱脈が強力な磁場を帯びており（放射線の影響かは不明）それが元で動作不良に陥った。その後2体目を建造したが本物のキングコングを採掘に使う事になり、逃走したコングを追跡するのが最初の仕事になった。東京へ輸送され、増上寺でキングコングと激戦を繰り広げ、その戦いは東京タワーにまで及ぶ。東京タワーに登り、人質を掴みながらコングと戦い、高い機動性を示したが、コングに破れ200ｍ程の高さからの落下の衝撃でバラバラに分解した。（その残骸の中にテレビの碁盤、原子熱戦砲やメーサー車のパーツが混じっている。）

2体目の頭部にはキングコング用の催眠光線投射機が取り付けられている。
* 身長：20メートル
* 体重：1万5千トン

スーツアクターは関田裕

{| class="infobox" style="width: 21em; font-size: 90%; text-align: left"
|-
! colspan="2" style="text-align:center;" | ''Toho'' character
|-
| colspan="2" style="text-align:center;" | thumb|210px
|-
! colspan="2" style="text-align:center; font-size: larger; background-color: #001; color: #ffa;" |Mechani-Kong
|-
! Species 
| Robot King Kong
|- 
! Height 
| 20 meters
|- 
! Weight
| 15,000 tons
|-  
! Relationships
| King Kong (Blueprint)
|-
! Major enemies 
| King Kong
|- 
! First appearance
| ''The King Kong Show'' 
|-
! Created by
| Arthur Rankin Jr. 
|-
! Portrayed by
| Hiroshi Sekita
|-
|}

'''Mechani-Kong''' is a remote-controlled King Kong introduced in the 1966 the British television series or its main character) to kill King Kong.

== ''The King Kong Show'' ==
Mechani-Kong first appeared in the ninth episode of ''The King Kong Show'' (the segment titled "Mechanikong") as one of several monsters in the series used by Dr. Who to fight Kong.

== ''King Kong Escapes'' ==
Mechani-Kong was built by Dr. Who to dig for Element X, a large core containing a natural abundance of nuclear power.  However Mechani-Kong was not strong enough to dig out the element, as the robot's circuits were destroyed by magnetic waves. Dr. Who then kidnaps the real Kong to dig for the element, placing him in a hypnotic trance. King Kong eventually breaks out of his trance and swims to Tokyo, where he and Mechani-Kong fight atop Tokyo Tower.  After a long battle, in which both of them nearly fall off the tower, Dr. Who's associate Madame X rips out the robot's control cords, causing Mechani-Kong to malfunction.  The mechanic replica of the ape falls to its destruction from the top of the tower.

== Lost Projects ==
The original idea for a second Toho Kong film involved the giant lobster Ebirah fighting Kong. The film was made with Godzilla in place of Kong, and Rankin/Bass agreed to work on the script to ''King Kong Escapes'' instead.

After abandoning a remake of ''Turner demanded payment for using King Kong's image. The film was dropped in favor of ''Godzilla vs King Ghidorah''.