行きたくないのなら

if you don't want to go

→ 行く
phrase Rare #45,117
if you don't want to go のなら introduces a condition: if that is the case. The subject is understood from context.
JA: 行きたくないのなら、無理に来なくていいよ。
EN: If you don't want to go, you don't have to force yourself to come.

君が行きたくないのなら行く必要はない。

If you don’t want to go, you don’t have to.

行きたくないのなら、行くな。

If you don't want to go, then don't go.

あなたが行きたくないのなら行く必要はありません。

If you don't want to go, you don't have to.

君がもし行きたくないのなら、行かなくてもよい。

If you don't want to go, you don't have to.