Short answer. Yes. Article 2014 provides that a loser in a game of chance may recover his loss from the winner, with legal interest from the time he paid the amount lost. So on top of the money itself, you may claim interest at the legal rate, running from the day you actually parted with it.
What the law says
But any loser in a game of chance may recover his loss from the winner, with legal interest from the time he paid the amount lost, and subsidiarily from the operator or manager of the gambling house.
Civil Code, Article 2014 — No Recovery of Gambling Winnings. Read the full provision →
Interest is built into the recovery right
The right to interest is not an add-on you must argue for separately — it is written into the recovery right itself. Article 2014 says the loser may recover his loss from the winner, with legal interest from the time he paid the amount lost. So when you sue to get back what you lost in a game of chance, the claim carries interest as a matter of the statute, not merely as a discretionary favour. The principal you recover is the sum you lost; the interest is an automatic companion to it, at the rate the law fixes for obligations of this kind.
When the interest starts running
Timing is the important detail. The interest runs from the time he paid the amount lost — that is, from the day you actually handed over the money, not from the later day you demanded its return or filed a case. This is more generous than the usual rule for money claims, where interest often starts only on judicial or extrajudicial demand. Because the clock starts at payment, an old loss can accumulate substantial interest by the time you recover. Keep records showing exactly when each sum was paid, since that date anchors the whole computation.
The legal rate, not a rate you choose
The article speaks of legal interest, meaning the rate set by law for obligations of this kind — not a rate you and the winner negotiated, and not one you simply pick. You cannot inflate the claim by demanding a higher contractual rate, because there was no lawful loan agreement, only a gambling loss the Code lets you undo. The legal rate is applied to the amount lost across the period from payment until the debt is satisfied. If the operator or manager of the gambling house is reached subsidiarily, the same interest attaches to that secondary claim in the same way.
What the interest claim cannot do
Interest widens your recovery, but it does not change what you are recovering, or from whom. It attaches only to a genuine loss in a game of chance that the law allows you to claw back; it does not convert an unenforceable gambling win into a collectible debt for the winner. Nor does it turn the operator into a primary debtor — recovery from the operator or manager remains subsidiary, and the interest follows that same order. And it does not excuse proving your loss: without evidence of what you paid and when, there is no principal for the interest to run on.