The 20-year-old spent the final three months of last season on loan at The Den, making 11 appearances and scoring twice.
Spurs are expected to allow Townsend to go back out on loan next term and although big-spending Leicester are also thought to be interested, the player fancies linking up with Lions boss Kenny Jackett again.
Townsend told the South London Press: "If Tottenham decided to send me back to Millwall I would be delighted.
"I owe Kenny Jackett a lot because he signed me last season when nobody else wanted me. He put a lot of faith in me and did a lot of good for my career."
Source: Team Talk
Source: Team Talk