The HAS.3 was introduced to provided an uprated helicopter from the HAS.2 using the improved Rolls-Royce Gem 42-1 turboshaft engines and upgraded main transmission gearbox. 53 HAS. 2 helicopters were converted and a further 30 new builds were delivered. 
The Lynx HAS.3 was retired from FAA service in a ceremony at RNAS Yeovilton on 1 Apr 2013.
List of Operators of Lynx HAS3 |
| Years | Model | Org | |
|---|---|---|---|
| 1971/00 | Lynx |  Westland | |
| 1971/?? | Lynx | Ministry of Defence (MoD) | |
| 1976/17 | Lynx | Fleet Air Arm |
Global Distribution of Lynx HAS3 |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| 001 | 1976 |  21,XZ227 | |
| 002 | 1976 | XZ228 | |
| 004 | 1976 | XZ229 | |
| 005 w/o 1998 | 1976 | XZ230 | |
| 006 | 1976 | 23,XZ231 | |
| 010 | 1977 | XZ233 | |
| 016 | 1977 | XZ235 | |
| 019 | 1977 | XZ237 | |
| 060 w/o 1988 | 1978 | XZ243 | |
| 064 w/o 1989 | 1978 | XZ244 | |
| 067 | 1978 |  ,XZ245 | |
| 080 | 1978 | XZ248 | |
| 091 | 1978 | XZ253,XZ689 | |
| 094 | 1978 | XZ254 | |
| 099 | 1978 | XZ255 | |
| 113 | 1979 | XZ690 | |
| 117 | 1979 | XZ691 | |
| 128 | 1979 | -,XZ694 | |
| 132 w/o 2005 | 1979 | XZ695 | |
| 135 | 1979 | XZ696 | |
| 153 | 1980 | XZ698 | |
| 166 | 1980 | XZ720 | |
| 185 | 1980 | XZ723 | |
| 186 w/o 2004 | 1980 | XZ724 | |
| 190 | 1980 | XZ725 | |
| 195 | 1980 | XZ726 | |
| 200 w/o 1997 | 1980 | XZ728 | |
| 202 | 1980 | XZ729 | |
| 213 w/o 1990 | 1981 | XZ734 | |
| 217 | 1981 | XZ735 | |
| 243 | 1981 | ZD249 | |
| 248 | 1982 | ZD250 | |
| 251 | 1982 | ZD251 | |
| 255 | ZD252 | ||
| 257 w/o 2001 | 1982 | ZD253 | |
| 259 | ZD254 | ||
| 262 | 1982 | ZD255 | |
| 265 | 1982 | ZD256 | |
| 267 | 1982 | ZD257 | |
| 270 | 1982 | ZD258 | |
| 286 | 1983 | -,ZD259 | |
| 292 | ZD260 | ||
| 295 | 1983 | -,ZD261 | |
| 297 | 1983 | ZD262 | |
| 299 | 1983 | ZD263 | |
| 301 | 1983 | ZD264 | |
| 303 | 1983 | ZD265 | |
| 305 | ZD266 | ||
| 307 | 1983 | ZD267 | |
| 309 | 1983 | -,ZD268 | |
| 316 | 1985 | ZD565 | |
| 317 | ZD566 | ||
| 318 w/o 1994 | 1985 | ZD567 |
