Nathan Lowe fired the Chairboys into a first-half lead, sparking worry inside the Accu Stadium.
However, the Terriers got back on level terms when Ryan Ledson rifled home an unstoppable effort past Will Norris.
Huddersfield pressed relentlessly for a second, eventually registering one in the 75th minute. Alfie May’s shot was only deflected as far as Marcus Harness at the back post and the playmaker slotted home from point blank range.
The game approached an end in chaotic fashion, as three goals were registered beyond the 90th minute. Connor Taylor levelled for Wycombe before Harness struck back to notch his second of the afternoon.
Huddersfield were heading for victory but could not prevent Lowe heading home his second 11 minutes into stoppage time.
Here are The Yorkshire Post’s ratings from the Accu Stadium.
1. Huddersfield Town player ratings
The ratings are in following Huddersfield Town's clash with Wycombe Wanderers. | Jan Kruger/Getty Images
2. Lee Nicholls - 7
Brave and assured when Huddersfield needed their seasoned stopper to step up - but he was forced off with an injury. | Tony Johnson Photo: Tony Johnson
3. Radinio Balker - 6
Steady enough at the back but missed a big chance to put Huddersfield ahead early on. | Jonathan Gawthorpe Photo: Jonathan Gawthorpe
4. Sean Roughan - 5
Started strongly but looked shaky when the pressure waa ramped up. Did not cover himself in glory late on. | Tony Johnson Photo: Tony Johnson