Hertfordshire South West is currently held by the Conservative Party, and awaits results.
Results for 2019 are notional estimates based on the new boundaries.
| Votes | Share % | Change %pts. | ||
|---|---|---|---|---|
| Michael McGetrick Social Democratic Party | − | − | − | |
| Gagan Mohindra Conservative | − | − | − | |
| Bernadette O'Malley Party of Women | − | − | − | |
| Ketankumar Pipaliya UK Voice | − | − | − | |
| Narinder Sian Green | − | − | − | |
| Victor Silkin Rejoin EU | − | − | − | |
| Alex Sufit Labour | − | − | − | |
| Sally Symington Liberal Democrat | − | − | − | |
| Keith Steers Reform UK | − | − | − |