| Kairu The Dolphin - Office Assistant |
| Keep Source Column Widths |
| Keep Source Formatting |
| Keep The Copy |
| Kendall's Tau Correlation |
| Key Performance Indicators (KPI) |
| Keyboard Accelerator |
| Keyboard Shortcuts |
| KeyTips |
| KPI (Key Performance Indicators) |
| Kronecker |
| KURT - Built-in Function |
| Kurtosis |
| KuTools Add-in |