Reliu left Romania in 1992 to work in Turkey, where he settled down.
The Romanian daily Adevarul said Mr Reliu believes his wife sought to have him declared dead in order to annul the marriage and allow her to remarry.
Variouslocalmedia report that 63-year-old Constantin Reliu can not be declared alive because he appealed against his certified death too late.
A court spokeswoman said the 63-year-old had lost his case in Barlad because he appealed too late. She had previously wished to divorce him, but was unable to do so without him actually being there.
"I am officially dead, although I'm alive, I have no income and because I am listed dead, I can't do anything", he added, as cited by the AP.
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Having been found with expired documents by Turkish authorities in January 2018, Reliu was deported back to Romania only to find out that he was legally dead.
Mr Reliu meanwhile, was alive and well in Turkey and had no idea he had been declared dead until earlier this year.
"The papers say I am dead, even though I am alive".
"The length of time that the defendant had not contacted his family, but also the fact that he last entered from Turkey was on July 8, 1999, made credible the claim by the spouse of Constantin Reliu that he had died in unknown circumstances", the court said as it dismissed his appeal. He was unaware that he had been declared dead in his absence when he returned to Romania.
There seems to be no legal precedent for a deceased person - legally speaking, at least - to come back to life.