Rival opposition figures are jockeying for position in a new Iran, in the wake of the death of Iranian Supreme Leader Ayatollah Ali Khamenei.

In dueling messages on Saturday, opposition leader Maryam Rajavi and exiled crown prince Reza Pahlavi urged Iranians to unite — while making clear they have different visions for the country’s future.

Rajavi -— president-elect of the Paris-based National Council of Resistance of Iran — called for the overthrow of Iran’s ruling clerical regime and the creation of a democratic republic as conflict intensifies over Tehran’s nuclear and missile programs following Saturday’s strikes by the US and Israel.

“Our homeland continues to endure greater pain and destruction under the rule of religious fascism,” Rajavi declared in a statement shared with The Post, urging Iranians — particularly the nation’s “courageous youth” — to protect civilians amid mounting instability.

The NCRI, formed after the 1979 Islamic Revolution, presents itself as a government-in-exile and says it has a ready blueprint for a six-month transitional administration that would organize free elections and transfer sovereignty to the people.

“Now is the time for solidarity,” Rajavi said. “[Iranians] reject both the Shah and the mullahs,” she added, dismissing any return to monarchy.

That was a swipe at Pahlavi, the son of Iran’s last monarch, who has told The Post he also has plans for a democratic transition if the Islamic Republic collapses.

In a post on X, Pahlavi described the US action as a “humanitarian intervention” aimed at the regime — not the Iranian people.

“The final victory will still be achieved by us,” he wrote. “It is we, the people of Iran, who will finish this task in this final battle. The time to return to the streets is approaching.”

Pahlavi also called on President Trump to exercise “the utmost possible caution” to protect civilians if strikes continue, adding that Iranians “will not forget your assistance during the most difficult period of Iran’s contemporary history.”

Both figures appealed directly to Iran’s military and security forces.

Rajavi urged members of the Islamic Revolutionary Guard Corps and other security bodies to lay down their arms and side with the people.

Pahlavi warned security personnel they would “sink with Khamenei’s ship” if they continued defending the regime rather than “protect[ing] Iran and the Iranian nation.”

Rajavi pointed to her “10-point plan” advocating free elections, separation of religion and state, gender equality and a non-nuclear Iran as the framework for a transitional government.

“Our path leads toward the future and the establishment of a democratic republic,” she said, “not a return to the buried dictatorship of the past.”

The competing appeals highlight a brewing struggle for legitimacy among Iran’s opposition at the Islamic Republic’s most precarious moments in decades.

Pahlavi did not immediately respond to a request for further comment.

Experts have warned the Tehran’s terrorist Islamic Revolutionary Guard Corps could make a power grab, according to a CIA assessment in the event of Khamenei’s death.

Khamenei never publicly disclosed who he wanted as a successor, and his son, Mojtaba Khamenei, has been rumored as a possibility.

He is the second-eldest son of the now dead leader, and has long been seen as the rational successor to the terrorist-funding regime, Reuters reported citing sources with knowledge.

The 56-year-old is inline with his father’s hardline policies, insiders told the outlet.

Mojtaba Khamenei was fingered by the US Treasury Department as one of the parties responsible for transferring $1.5 billion out of Iran last month — with Secretary Scott Bessent accusing the leadership of “abandoning ship.”

Another regime holdover is Hassan Khomeini — the grandson of the father of the Islamic Revolution Ruhollah Khoemeini.

Hassan Khomeini, 53, has emerged within the last month as a serious candidate and represents more conciliatory choice internationally and domestically than Khamenei.