Thumb Keyboard Layouts
This page collects keyboard layouts for physical keyboards that has dedicated thumb keys, such as • Kinesis Advantage2 Keyboard • Ergodox Keyboard .
Maltron (~1977)
The Maltron Layout is specially designed for the Maltron Keyboard, a design copied by the more well-known Kinesis Contoured Keyboard .

The distinguishing feature of Maltron layout is that the key e is positioned for the thumb. You will need a keyboard with a thumb key to use the Maltron layout.
Also, the Maltron layout is more efficient than Dvorak or any other, simply because it places the mostly frequently used key e on the thumb.
[see Maltron vs Dvorak keyboard Layout]
[see Maltron Keyboard]
Kinesis Keyboard Layout

Xah Layout D14
Standard Gergo Layout

Xah Gergo Layout

RSTHD (2016)
Created in 2016 by Xuming Zeng. Designed by using a probabilistic algorithm to find optimum. [2021-05-19 https://github.com/xsznix/keygen ]. Home page at https://xsznix.wordpress.com/2016/05/16/introducing-the-rsthd-layout/

Hands Down Layouts (2020)
T-34 Layout (2021)
40percent Keyboard
Keyboard Layouts
- QWERTY
Ergonomic keyboard Layouts
Thumb Keyboard Layouts- Most Efficient Layout?
- Maltron vs Dvorak
- Colemak vs Workman
- Typing Multi Layouts
Dvorak
Dvorak Layout- Hardware vs Software Dvorak
- Myth of QWERTY vs Dvorak
- Dvorak vs Programer's Dvorak
- Dvorak vs Colemak
- List of Dvorak Keyboards
- Qwerty to Dvorak, A PhD thesis, 1978
International
International Layouts- QWERTZ, AZERTY
German
German Ergonomic
French- New French Layout
French Ergonomic- French Letter Frequency
Russian- Russian Layout and Programing
- Portuguese Ergonomic
Chinese Input Methods- Pinyin Letter Frequency 拼音字母頻率
Japanese Input Method
Japanese Layouts- Japanese Char Frequency